New Mac, which version to keep?

I recently replaced an old Mac with a new M4 Mini running OS 15.3.1. In migrating to the new machine I discovered I have 1P, 1P7, 1P8, and 1P for Safari all installed (plus an 1P app.zip file). I have no idea which one I've been using, but I vaguely recall having trouble long ago trying to move from one of them to what I probably assumed was an "upgrade" from whichever I was using at the time. What are the differences between them? Which should I keep? Is there a certain way to delete the others so I don't end up with some kind of disaster where I am unable to open my PW-protected sites and accounts? Thanks!