Unfortunately none of the comments I've made from my instance are federating anywhere since I update.
Two factor is nice, however having it not create a barcode is a bit of a pain. You can create one locally if you install qr through pip (I'm sure there are many other ways but that one worked well for me). Just pip install qr. Once it's installed just type qr and paste the link given through lemmy. Worked for adding it to Aegis on my phone.
I updated my small instance, it worked great. Until I rebooted the server then it stopped working entirely. I tried restarting the database and the app separately, but it never came back up. I had to wipe and reinstall as downgrading didn't work either. Due to issues with names no longer federating if the instance is recreated with the same domain and name I had to change my subdomain entirely as well. If for example a user was named [email protected] and you reinstall that instance using instance1.tld. If you recreate the user [email protected], it will not federate any comments.
I may be a small use case, but it has made sure I'll be waiting a good long time before upgrading again.