I seem to have downloaded two versions of python and have some file conflicts

I had 3.7,iirc, then tried to install 3.4. Because the game engine that is a Game Cube emulator. Lutris is on top then dolphin-emu needs it to to use python 3.4. I have absolutely no other need for python that I know of, but what if other packages already have dependencies? Is it Nix that puts all the dependencies underneath the file?

Do I just delete them both, then re-install 3.4 or separate the two?

I already have the latest Wine and the emulator could be dolphin-emu(?)
Sorry. Didn't see anything this specific and, I am still relearning what little I knew and reconciling myself to the fact that much of that is no good any more. haha

Xubuntu 20.04 an Optiplex 780 8G ram

Thx, in advance, I hope!