Good morning
I check twice daily

Most days I only check once in the morning. Unless I've been bad with my diet. Then I'll check again to see if there was a big spike. If my sugar went high I'd adjust my behavior for the rest of the day and stay away from higher carb foods. I'd drink more water and go out and walk.

I check ar least 5 times daily. I also wear a cgm to keep an eye on trends.

I check 6-8 times a day & have done so for years. Don't know any other way. :)

A T1 should check more often, as they are on insulin. You should qualify for a CGM.