I decided to make my own little PETG benchy for my X1C, this is my first upload! I like this one more then the other generic benchy we see constantly. This one may not be as taxing on your printer, but it'll print a little faster and still show characteristics. This won't have settings for any other printers besides an X1C/0.4mm nozzle/Textured PEI plate. It's a super generic 0.2mm layer height profile though, just change it to suite your needs.

I print it without supports, the front and back of the boat hull will show how your PETG overhangs are performing. It will never look perfect, but it's a way to see if your calibrations are in order… I.E. The overhangs will look significantly worse if the filament isn't calibrated. BTW, the little rods next to the windows have little notches in them, it's not a print defect.