I think it should be a requirement on this thread for each poster to define what they consider "busy" or "insane" or a "nightmare" in terms of crowds/wait times. The binary of exaggeration and understatement isn't helpful for an already anxious and on-edge fanbase
I consider anything under 45 minutes reasonable, anything under 30 good, and anything 25 and under absolutely glorious. Based on that criteria, we found our trip last week to be very fun and pleasant

Lots of walk-ons that had long posted wait times, and also lots of situations where we had to skirt a group of people on a walkway. At EPCOT on Friday for F&W and it was busy but the longest line we experienced for the booths was France around 5pm, we waited socially distanced behind about 10 people and it took probably about 10-15 minutes to get through at the booth - definitely not a miserable experience. The longest wait for a ride was 40 mins for Test Track because of a cleaning cycle but everything else was pretty much a walk on (Soarin' was maybe 15 minutes waiting for the previous show to start and then unload).
Also, there were plenty of spots to grab a table or a seat to enjoy your beverages/snacks. Having to walk 10 yards to find a table is not a miserable experience either.
I think another poster said it best - if you're expecting tumble weeds and empty parks, and for everything to be a walk-on, don't go. If you are frightened of someone coming within 6 feet of you in a gift shop or on a walkway, stay home. If you're spoiled by having to wait more than 5 minutes in a line, you're not going to like it. If, however, you pack your patience you will find a fun and relaxing trip waiting for you.