Avoid it as long as possible. Mail search is broken 4 out of 5 days that I attempt a search, and I need to go to the webmail versions of my accounts to find anything. Fortunately it's only something I need to do about once a day, unlike in prior lives, but holy crap they took the best ruing about macOS and kids destroyed jt completely.
Plasma on Linux is looking pretty tempting these days, especially with almost all office software being web based these days.
Switching email clients is a big lift that I need to investigate, and have been hesitant to jump into until absolutely necessary, but another week of this BS...
Geary or Thunderbird are excellent mail clients.