We just got back from the most fantastic day (8/19)! I was so worried about the crowds but I couldn’t have asked for better. My number one take-away is get there early. It did get crowded later in the day.
We arrived at the parking garage at 8:15. Stopped at Voodoo on the way in. There was a small group waiting for the gates to open and there was a minute of crowd squeezing through. It was our first visit and we actually had to stop and ask if we were going the right way to Diagon Alley because there was literally not another person is sight to follow! We stopped at Ollivanders to sign up and then got on Gringotts and did not see another person until the loading platform. We were the only people in most of the shops. We walked on the HE and had to wait just for the next train. Hagrids was posted 60 min. We waited 35 constantly moving. I loved that ride! We walked on to FJ twice, ate lunch at 3 Broomsticks - walked in. When we came out from lunch there was about 10 groups waiting to get in. We wanted to do Hagrids again but the line was back out to the talking fountain. It was pretty hot so we took a break in Suess land and rode the trolley. We then went back to Hagrids and the line was even shorter than the first time - we waited 15min. We then took HE back -waited about 10 min. We did Jimmy Fallon and Minions on the way out. I was super impressed with Universal and the guests. The employees were attentive and constantly cleaning. Other guests were generally respectful in lines and paying attention to the spacing. I honestly didn’t see more than a few people without masks on correctly. But they were always far away. A couple of times I passed too close with someone but it was really negligible. I hated wearing the mask - worst part of the day

Anyway I hope this gives hope to those of you with upcoming trips! I think if you avoid weekends it should be good.