2 cards were tested. Both are working but for some reason their performance is poor (the difference is very small compared to FX5200), OpenGL 2.1 can be forced with

MESA_GL_VERSION_OVERRIDE=2.1 command

but the performance is still bad.

lspci -vvnnk

01:00.0 VGA compatible controller [0300]: NVIDIA Corporation NV34 [GeForce FX 5500] [10de:0326] (rev a1) (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 f1000000 (32-bit, non-prefetchable) [size=16M]
        Region 1: Memory at e0000000 (32-bit, prefetchable) [size=256M]
        [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 3.0
                Status: RQ=32 Iso- ArqSz=0 Cal=3 SBA+ ITACoh- GART64- HTrans- 64bit- FW+ AGP3+ Rate=x4,x8
                Command: RQ=32 ArqSz=2 Cal=0 SBA+ AGP+ GART64- 64bit- FW+ Rate=x8
        Kernel driver in use: nouveau
        Kernel modules: nouveau

  Display:     0xdf1d20
  Window:      0x1200002
  Context:     0xe13cd0
  GL_VERSION:  1.5 Mesa 19.0.5
  GL_VENDOR:   nouveau
  GL_RENDERER: NV34