Friends at Fedora with a Yahoo account, please watch out:
https://smoogespace.blogspot.com/2019/09/attention-fedora-yahoo-email-users.html
TL;DR: Yahoo filters mails form Fedora's mailinglists etc. So when you want to stay in the loop, you either have to check bugzilla and Hyperkitten yourself, or maybe just get another mail provider.
I recommend to get an own domain while switching (if you not already have), that makes switching in future so much easier 😉