1. Download latest OBSE version
2. Install obese where steam installed oblivion
3. open path in terminal and add type this
>printf '\x90\x90\x90' | dd conv=notrunc of=obse_loader.exe bs=1 seek=$((0x14cb))
>printf 'obse_loader\x00' | dd conv=notrunc of=OblivionLauncher.exe bs=1 seek=$((0x1347c))

OBSE is now installed succesfully

Only know how to do this manually, basically you install as you normally would by dragging and dropping files where the mod author tells you to put them

1. Install your mods manually
2. To make body mods work install SkyBSA mod
3. Some mods require modifying Oblivion.ini in Documents/MyGames/Oblvivion, you can fin it in
>~/.steam/steam/steamapps/compatdata/22330/pfx/drive_c/users/steamuser/Documents/My Games
to modify it open path in terminal and type
>nano Oblivion.ini
works with any .ini file.

1. Launch Oblivion through steam
2. Click Data Files in oblivion launcher
3. Double click the .esp you want to activate
4. click Ok

1. install protontricks flatpack
2. On application menu select Oblivion
3. Protontricks will warn you that you're using a 64bit wineprefix. Click OK.
4. Winetricks window will come up, saying "choose a wineprefix" click "Select the default wineprefix" and click OK.
5. Click "Install a Windows DLL or component" and click OK.
6. In this list you need to click the following. d3dcompiler_42, d3dcompiler_43, d3dcompiler_47, d3dx9_42, d3dx9_43.
7. Once thats done, click OK. It will download and install libraries off the net. Eventually the window will come up again. Keep clicking cancel till it's gone.
8. Winetricks window will come up again, select open Winecfg
10. Click "Libraries" tab. And type in "New override for library"
type
>d3d9
done, remember to disable bloom and enable hdr so the enb works

Most of these steps were taken from this op from reddit
https://old.reddit.com/r/linux_gaming/comments/pwuqlg/howto_play_fallout_new_vegas_through_steam_proton/
for modding new vegas on linux

And from this guide
https://cs2bus.com/sharedfiles/filedetails/?id=2192771657
for getting obse working