Something I can use to browse GitHub repositories, reply to and create issues, and get notifications for issues on my own repos.

Do you mean Obtainium? I use it to download apps not available on F-Droid, but I can’t use it to actually browse/use GitHub. I will clarify in my OP :)

I do too. Envision has an option to install “WiVRn” which I found worked way better than ALVR.

I play VR on Linux, it works surprisingly well, especially via Wayland. There’s an app called Envision that sets up basically everything you need for you. Unlike a few years ago, I had to do no fiddling, it just works.

What does a hosted RSS provider give you over a normal client? I use Nextcloud News (self hosted) but I don’t really know the benefit over just using an RSS app on my phone (besides syncing my list I guess).