Golden retrievers can swim for over 40 minutes without tiring - they were originally bred to retrieve shot waterfowl from the middle of lakes. It's still absolutely a good idea to get a life vest, but even in a lake like this the doggo should be ok.
The perspective is a bit weird, so it took me a bit to figure out too. The parts jutting out are the knees and the legs bend outward from there. It definitely looked like they had weird lumps in the middle of their calves at first though!
Man, I miss shittymorph. I remember when this was posted for the first time and everyone on Reddit lost their minds because it wasn’t an undertaker joke. Lost my dog this year, makes me a little sad :(