Version 6.804 of K9 is significantly better in terms of user-friendliness and readability.
The contrast of the messages in the inbox is too low; in dark mode, they are barely legible.
I have set up four accounts that I want to sync manually when needed. Switching between accounts and syncing them requires several steps, which makes the process cumbersome and complicated.
About twice a year, I test the latest version of Thunderbird and then return, disappointed, to K9 version 6.804, which I find much better.
