Hello,
I think of brought this up many times but the only issue I’ve really ever had with Bitwarden is every time I unlock my vault to enter and look at it or use a password and have to enter my PIN to use it (enabled by choice) the submit button is way up on the screen in my ios mobile device. And then the submit button on the very PIN page is wayyy up in the top right corner and it’s such a pain to have it always out of reach.
The “submit” button needs to be right above the ios keyboard on the page so when you enter your pin you can quickly just press submit and either get into your vault or use the password your trying to use. 
Please and thank you lol.