First, I wanted to thank all of the Effective Altruism Global organizers and participants. I found it to be very valuable and overall well put together. There was obviously a ton of work put into it, most by conference organizers who I don't believe will get that much credit for it, and I very much commend their work.
That said, there's always a lot of room for new ideas, and I find I often get a bunch of ideas at and after these conferences. Because of the EAGx events, ideas described now may be able to be put into action somewhat soon and experimented with.
As may be expected, I recommend that people make all of their ideas be independent comments, then upvote the ideas that they think would be the most useful.
A guarantee that all the talks/panels will be recorded.
The booklet this year stated that "almost" all the talks would be recorded, which left me worried that, if I missed a talk, I wouldn't be able to watch it in the future (this might just be me). I probably would have skipped more talks and talked to more people if I had a guarantee that all the talks would be recorded.
Also, it would be nice to have a set schedule that didn't change so much during the conference. The online schedule was pretty convenient and was (for the most part) up to date, but people using the physical booklet may have been confused.