Me too. I started using FairEmail recently when I finally decided to get a non-gmail email address, but I've been unhappy that it doesn't seem to understand that "junk" is my spam folder. Instead, it wants to handle the spam itself by blocking individual senders, which is pointless.

My desktop client seems to understand it.

And I just installed K9 and you can configure the spam folder, so I feel pretty good about it, too. I'm actually looking forward to the next spam that makes it to my inbox so I can see where it ends up.