Had a few deck boards that were completely rotten through. As in step in the wrong spot and the foot is going through the deck. And a few others that were just half rotten.
Previous owner, I swear bought the cheapest deck paint. Or not even deck paint and just bought outdoor paint and gave the deck a coat before selling it. Within a year it was completely worn off. Luckily due to hail damage insurance is paying for a sanding and painting of the deck (and other things too, but that’s irrelivent)
I still have one more I need to do tomorrow.
Not OP but I build stuff for a living - including 3 decks this year. The joist is a little less than 2 inches wide (48mm) so in a spot like this I place the screws about an inch to an inch and a half from the end of the board and drive it in at an angle. That way I pretty much hit the corner of the joist but as the screw goes deeper it digs deep into the solid centre wood of the joist. It just holds the end of the board down. There’s another set of screws on the next joist - the board doesn’t get to move sideways either way. Sometimes there is only half an inch of joist for the deck plank to rest onto. That’s perfectly fine.