It’s really just a handful that have long lines part of the day. LAX for example hasn’t has a line at all really. Takes longer for my bag to be secondary checked every time than it does to wait in line.
Essential Air Service travelers aren't seeing any major pain either traveling outbound. Fortunately (though kind of sadly) the TSA folks only work a couple hours a day at the checkpoint for the single flight in and out so most of them are working side jobs anyways as their day job from what I hear. Our checkpoint doesn't even open until ~45 minutes before boarding starts in the middle of the day.