LineageOS has instructions for Windows/Mac/Linux: https://wiki.lineageos.org/adb_fastboot_guide

Where would one find that?

KeepassXC is great, but I realised very late in the process of setting it up, that the browser extension does not support Flatpak based browsers: “Please note that in general Flatpak and Snap based browsers are not supported, Ubuntu’s Firefox Snap being an exception.” (https://github.com/keepassxreboot/keepassxc-browser/wiki/Troubleshooting-guide)

I hope this might change at some point.

Their easy installer is why many people I know installed it, but it only supports 21 devices and mine wasn’t one of them, so I can’t say much about usability or security. If yours is one of them, there’s also a Linux guide on their website: https://doc.e.foundation/easy-installer

I’d suggest OpenSUSE Tumbleweed and one of the UBlue images - maybe Bazzite, since you mentioned gaming. But Steam and GOG run on all of those.

first off, do you realize where we’re at? normies don’t frequent lemmy

No need to be passive aggressive, but if you think all people on lemmy are so tech savvy, then why post it here?

https://joinmobilizon.org/

Maybe you can also find open source communities in your area. After some digging, I was surprised how many groups there are in my area and they are always happy to get additional hands to organize stuff or run errands etc.

Sure it’s allowed, but we have these questions a lot, so some enthusiasts made some really great posts with tons of info, for example:

https://lemmy.ml/post/12123645

https://lemmy.ml/post/18268622

I’d recommend to read through them, then come back and ask more specific questions.