I just got back last Friday, stayed 8/01-8/05 at Beach Club. We're passholders and have had several trips since reopening, the last was at the end of May/start of June. Crowds then still weren't awful though it was noticeably busier than previous trips but wait times were generally under an hour for most things. Our strategy for this trip was to spend each morning/early afternoon at the pool and then go to the parks in the late afternoon or early evening.
The first two parks we went to were EPCOT and Hollywood Studios. I had been reading on this thread about how crowded everything was and I have to admit, once I got there I thought you all were a little insane for thinking the crowds were back to regular levels. EPCOT and HS still didn't feel like pre-pandemic levels to me at all. In fact, in the evenings we were able to walk on almost all the rides in future world with the exception of Test Track and while there were a few bottlenecks in the World Showcase, that was easy to stroll through as well. Waits at Food and Wine booths were not bad either. Hollywood's wait times weren't terrible. I think we waited about 30 minutes for Tower of Terror and 45 for Runaway Railway. TSMM was like a 20-minute wait. We didn't attempt any of the Star Wars rides or RNRC or SDD. Then we went to Magic Kingdom. Wowza. That park was completely nuts. While some of the other parks tend to get less busy as the day goes on, this didn't seem to be the case for Magic Kingdom.
We arrived about 2 pm and the wait times for everything were through the roof. All wait times posted were pretty high, even for smaller rides. And the absolute sea of people you had to wade through to get anywhere was intense. We ended up bailing before the fireworks because we just couldn't take it anymore. I'd say we were there for about six hours and we managed to ride three things and see the Hall of Presidents. It was not great. That park is by far the worst we experienced with crowds and I'm glad we didn't go there first so I could live in my fantasyland of "this isn't so bad" just a little while longer.
Truthfully, they need to open everything back up. This is just my opinion, but I cannot believe they have opened capacity up as much as they have while they still have many entertainment options, shops, and restaurants closed. It is not working out well at Magic Kingdom, but I imagine if I had gone to the other parks earlier in the day, I would have had a similar experience. As someone who was able to use Fastpass to it's fullest capacity when it was around, this was the first trip I lamented not having it (but I'm kind of living in fear of what it will come back as when it eventually returns). I'm going again for a short three-day trip at the end of this month, I'm hoping the crowds will be better then since that seems to be a bit of a lull between school being back in session and the 50th ramping up -- but I think I'll skip out on any more trips until next year after that. I imagine with the crowds coming this fall that any trip would not be an enjoyable experience for me.