I always tip well - 20-25%, however lately, because service has been limited, I tip less.
There are places where they don't even give you a menu anymore, you have to go online and scan a code. Because printing a sheet of paper and either laminating it so you could wipe it or just giving you the damn piece of paper is so darn expensive? It's what 1 or 2c of a modern laser printer? I don't tip there as much, because I have to do all the effort to find and order food on a screen when I just told my kids they couldn't have a screen. Sure it saves THEM money, and COVID is just an excuse for them to not have to spend $50/month at the printer, but I go to restaurants to avoid my screen and take a break.
I went to a place where they had this huge entrance space. Couldn't wait there, I had to wait with my family of 5 outside in the cold for 30 minutes. There is no government regulation right now that prevents us from waiting there, but because some patrons felt uncomfortable that 'too many people' were inside and kids would run around and those people were loud and annoying that it was "unsafe". So they now kick everyone out. Guess what: I don't have to service your restaurant either, if you cave to the woke and uninformed idiots that are loud, then have just them as your guest.
On the other hand:
I went to another restaurant, treated us nicely, owner talked with us across the tables. They did their best to accommodate us and the kids, didn't complain when the 3 year old didn't want to mask to go to the bathroom. That waiter got a good tip, because they understand that having 3 kids is hard and you go to the restaurant so you don't have to do dishes and need a break.