If I have fluffy buds and want to increase bag appeal the 2nd to last day before I had they are done drying I compress them between 2 pieces of cardboard for about 15 minutes and then leave them to dry for the last day.
I dry in large outdoor yard waste bags. I use just the bottom so cut the bag in half. I always have a piece of cardboard in the bottom for support. I then take another piece out it on top of the almost dry buds. And put something on top of it for 15 minutes. Maybe bottles of soda or milk. It’s impirtant that it’s done when the moisture content is down around 70%, then they are still moist enough to move and hold shape without being so dry that they crumble.
I do it to fit in jars better when I have a lot of fluffy bud.
Still let it dry down to 62% after. Sometimes 2 days now that you have compressed it but just watch the moisture meter and get Bovedas.
I know a bunch of street dealer friends that grow junk and vacuum seal it to squish it to make it look better so I assume getting the air out of s baggy will also work.