TSLAMen's UPF 50+ Quick Dry Short Sleeve Compression Shirts, Athletic Workout Shirt, Water Sports Rash Guard

Is it normal for it to be so long? I ordered a large and the shirt extends all the way to my lap.

I ordered an XL of the same shirt last summer (2019) and the new one fits a lot looser. Is this a change in design or manufacturer error?

I am 5'9" 165 what size what size is recommend?

Is it u.s sizes, or Asian sizes?