Works without problems, just like with the rest of the ancient nvidia cards.

lspci -vvnnk

01:00.0 VGA compatible controller [0300]: NVIDIA Corporation NV11 [GeForce2 MX/MX 400] [10de:0110] (rev b2) (prog-if 00 [VGA controller])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 64 (1250ns min, 250ns max)
        Interrupt: pin A routed to IRQ 18
        Region 0: Memory at f9000000 (32-bit, non-prefetchable) [size=16M]
        Region 1: Memory at f0000000 (32-bit, prefetchable) [size=128M]
        [virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
        Capabilities: [60] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [44] AGP version 2.0
                Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA- ITACoh- GART64- HTrans- 64bit- FW- AGP3- Rate=x1,x2,x4
                Command: RQ=32 ArqSz=0 Cal=0 SBA- AGP+ GART64- 64bit- FW- Rate=x4
        Kernel driver in use: nouveau
        Kernel modules: nouveau

01:00.0 VGA compatible controller [0300]: NVIDIA Corporation NV11 [GeForce2 MX/MX 400] [10de:0110] (rev b2) (prog-if 00 [VGA controller])
        Subsystem: PROLINK Microsystems Corp MVGA-NVG11AM(400) [1554:1081]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 64 (1250ns min, 250ns max)
        Interrupt: pin A routed to IRQ 18
        Region 0: Memory at f9000000 (32-bit, non-prefetchable) [size=16M]
        Region 1: Memory at f0000000 (32-bit, prefetchable) [size=128M]
        [virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
        Capabilities: [60] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [44] AGP version 2.0
                Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA- ITACoh- GART64- HTrans- 64bit- FW+ AGP3- Rate=x1,x2,x4
                Command: RQ=32 ArqSz=0 Cal=0 SBA- AGP+ GART64- 64bit- FW+ Rate=x4
        Kernel driver in use: nouveau
        Kernel modules: nouveau

glxheads

  Display:     0x6e4d20
  Window:      0x1200002
  Context:     0x6f65e0
  GL_VERSION:  1.2 Mesa 19.0.5
  GL_VENDOR:   Nouveau
  GL_RENDERER: Mesa DRI nv11 x86/MMX/SSE2

hwinfo --gfxcard

  20: PCI(AGP) 100.0: 0300 VGA compatible controller (VGA)        
  [Created at pci.386]
  Unique ID: VCu0.YByOHIP6pc8
  Parent ID: vSkL.ITQqGs0XM26
  SysFS ID: /devices/pci0000:00/0000:00:01.0/0000:01:00.0
  SysFS BusID: 0000:01:00.0
  Hardware Class: graphics card
  Model: "PROLINK Microsystems MVGA-NVG11AM(400)"
  Vendor: pci 0x10de "nVidia Corporation"
  Device: pci 0x0110 "GeForce2 MX/MX 400"
  SubVendor: pci 0x1554 "PROLINK Microsystems Corp"
  SubDevice: pci 0x1081 "MVGA-NVG11AM(400)"
  Revision: 0xb2
  Driver: "nouveau"
  Driver Modules: "nouveau"
  Memory Range: 0xf9000000-0xf9ffffff (rw,non-prefetchable)
  Memory Range: 0xf0000000-0xf7ffffff (ro,non-prefetchable)
  Memory Range: 0x000c0000-0x000dffff (rw,non-prefetchable,disabled)
  IRQ: 18 (67266 events)
  I/O Ports: 0x3c0-0x3df (rw)
  Module Alias: "pci:v000010DEd00000110sv00001554sd00001081bc03sc00i00"
  Driver Info #0:
    XFree86 v4 Server Module: nv
  Driver Info #1:
    XFree86 v4 Server Module: nvidia
    3D Support: yes
    Color Depths: 16
    Extensions: 
    Options: 
    Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #18 (PCI bridge)

Primary display adapter: #20

dmesg

[   64.155452] fb0: switching to nouveaufb from VESA VGA
[   64.155733] Console: switching to colour dummy device 80x25
[   64.156268] nouveau 0000:01:00.0: NVIDIA NV11 (011000b2)
[   64.209471] nouveau 0000:01:00.0: bios: version 03.11.01.30.00
[   64.210107] agpgart-intel 0000:00:00.0: AGP 3.0 bridge
[   64.210127] agpgart-intel 0000:00:00.0: bridge is in legacy mode, falling back to 2.x
[   64.210135] agpgart-intel 0000:00:00.0: putting AGP V2 device into 4x mode
[   64.210166] nouveau 0000:01:00.0: putting AGP V2 device into 4x mode
[   64.210271] agpgart-intel 0000:00:00.0: AGP 3.0 bridge
[   64.210284] agpgart-intel 0000:00:00.0: bridge is in legacy mode, falling back to 2.x
[   64.210290] agpgart-intel 0000:00:00.0: putting AGP V2 device into 4x mode
[   64.210320] nouveau 0000:01:00.0: putting AGP V2 device into 4x mode
[   64.210329] nouveau 0000:01:00.0: tmr: unknown input clock freq
[   64.226031] nouveau 0000:01:00.0: fb: 64 MiB SDRAM
[   64.256041] [TTM] Zone  kernel: Available graphics memory: 122726 KiB
[   64.256044] [TTM] Initializing pool allocator
[   64.256053] [TTM] Initializing DMA pool allocator
[   64.256092] nouveau 0000:01:00.0: DRM: VRAM: 63 MiB
[   64.256095] nouveau 0000:01:00.0: DRM: GART: 64 MiB
[   64.256101] nouveau 0000:01:00.0: DRM: BMP version 5.20
[   64.256105] nouveau 0000:01:00.0: DRM: No useful DCB data in VBIOS
[   64.266886] nouveau 0000:01:00.0: DRM: MM: using M2MF for buffer copies
[   64.267461] nouveau 0000:01:00.0: DRM: No useful DCB data in VBIOS
[   64.268678] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   64.268680] [drm] Driver supports precise vblank timestamp query.
[   64.356937] nouveau 0000:01:00.0: DRM: allocated 1280x1024 fb: 0x8000, bo 4b479bc3
[   64.362522] fbcon: nouveaudrmfb (fb0) is primary device
[   64.441543] Console: switching to colour frame buffer device 160x64