I store my "wallets" as digital paper wallets encrypted in 7z with 64 character random passwords. Most of the password is stored on a QR code I scan with a 2D barcode scanner, but there may or may not also be a prefix or suffix.. a couple of characters before or after the main password, I add to thwart anyone who might find the QR codes. I can't confirm or deny this.. and yes I will install the wallet of the coin I buy and then delete it after I have my "paper wallet" backed up. I may or may not also use lastpass with a 64+ character password... all with 2 factor authentication turned on and everything.

When I use the authy app I don't name the sites.. I just put in letters, like Aaaaaaaaa, Bbbbbbbbb, etc , and have a laminated card in my wallet that shows which numbers correspond to which websites in case somehow someone got ahold of my 2FA account. (Very unlikely).. the exception to this rule is Gemini, which uses Authy by default which is why I originally got it in the first place.  Authy doesn't let you rename sites that use their specific algo.