That’s my go to for my quick scratch pad notes, generally something I only need for a one time deal.
I use the Bit Warden secure note feature for more permanent things.
If it is a more ongoing documentation deal that needs organization I like Bookstack.
All depends on the purpose one uses it for.
There is a separate thunderbird app from k-9 now, so apparently not just an update. Obnoxious though that the new app lists a bunch of collected data types while k-9 doesn’t list any. Maybe just a legacy thing since K-9 has been around forever and they didn’t list them originally, but still upsetting for the privacy minded.
TB:
K-9: