I'm weird and use ArchLinux ARM on my Raspberry Pi computers. I think it's much easier to admin, especially if you don't need video accelleration, but I use Arch on the daily, so that's probably why I feel that way.
I also find that Fedora was pretty nice as well, but felt too bloated for what I needed.
Finally, Alpine was amazing. I used to use it as my daily driver for a while as well, and it is nice, lean, and easy to use. The main downside is that it uses the musl libc meaning sometimes packages won't work, or things won't compile. That was very uncommon though and the exception , not the rule.
The main problem I've had on ALL of those distributions were the clock. The Raspberry Pi doesn't have a built-in clock, so you need to use NTP to pull the time down, or else it'll be extremely out of sync. This means setting up your timezone, etc. RPi OS does this for you, but most DIY distros (Alpine, Arch) will not, so you'll need to set that up.