Yes and no.

I have also been very content with Posteo.

Edit: Never mind, I misunderstood something. From what I remember, this post is more or less an accurate description of what to expect.

It’s a really good game. Check it out!

Back in the day when I was running Gentoo, in the long long ago, Firefox was one of the few things I installed as a binary, since compiling it took hours. Compiling it every time there was an update would have driven me crazy. From what I gather this is still true for most users. Yeah, go for the Flatpak if at all possible.

No.