Squash is just something you do at the point of merging. It's a single option during the merge and doesn't have you doing any more work than a merge that you don't squash. I don't know about github, but I know in gitlab it's a simple checkbox in the merge request (and it can be set to be checked by default by the admin if they want).

That's great for you, but squashing commits doesn't do anything for our team. It hides somewhat useful information, which never seemed like a good thing to me.

Other teams at my company are obsessive about squashing, and I am glad I don't work on those teams. They are frustrating to work with, they are notoriously slow to ship anything, and their product still breaks even with all their processes and hurdles to getting anything shipped. Teams that demand squashing simply don't impress me at all.