I tried signing up yesterday, out of curiosity (apart from YouTube I don’t use social media). Yahoo mail and Gmail 100% blocked my verification emails from coming in, they didn’t even end up in the spam folder. Which stinks! Signed up for protonmail, verification mail arrived in 2 seconds. Sadly, the app is buggy and the verification codes expired within seconds, verifying the account was impossible for me. I hope this issue will be resolved soon.
https://www.youtube.com/watch?v=B_EMcHVQT94&lc=Ugz-ggRdY7clzhmM7DN4AaABAg