I avoid it where I can. But I don’t freak out if there is a tiny bit of sugar in something.
Case in point. I made some ketchup year before last. I canned it. And the recipe called for a little sugar in it. I wasn’t doing keto at the time. I have since gone back and calculated just how much sugar I’d be getting from a typical serving of my homemade ketchup. It’s less than 1g. Ya know what? I only eat ketchup a few times a month. I’m gonna enjoy my homemade ketchup from time to time and not give a hoot whether it has that little bit of sugar in it. I have way bigger things to worry about.
Yes, I do read labels in the store. And I care how much sugar is in there. I put things back on the shelf often when it looks to be way more than I want. But tiny amounts, I pretty much ignore.