I’ve see the odd app / website like that, if it’s not OSS I give them the finger and move on (while politely suggesting they should offer non-google integrated options), if it is OSS I start by opening a feature / bug request (if there isn’t one already) and submit a MR if I’m able to (which often I’m not as I’m more experienced in the Ops and Sec space than I have development (understatement of the century)).