I mean, you don’t have to tell them the exact details. Just tell them you’re in the loop with other companies, and you plan to have offers start coming in around $DATE, and would like to align things so you can evaluate them together. Of course if you end up not getting any other offers that might be a problem but if they understand that you are actively involved in multiple options I find that recruiters will move things for you. I think this is true even if they’re secretly trying to hurt you (e.g. by running their process faster and hoping that you take their offer first) because if you’re firm about your timelines (and you commit to it!) nobody really wants to be in a process where they string you along for a month and get you to the offer stage and then miss signing you on because they didn’t want to wait a few days to get extra information from you (about, say, how you’d really love to join Meta if only they bumped their comp $20k).