I know most people in america are used to it, but don't you feel weird tipping?

I used to wait tables years ago -all through college. Don’t feel weird tipping the server at a restaurant or the haircut lady etc… but I do feel weird tipping when picking up to-go orders. 20%? 10%? And when buying food from the counter somewhere. Baristas make a drink like a bartender so I get that. But the lady at the donut shop? I think Americans during Covid times were tipping extra out of generosity knowing that it was hard times for service industry folks but that’s led to tip inflation now.