Tsushima is my GOTY so far, I think Cyberpunk might topple it, but I'm not sure if I am going to play that on PS4 or just wait for PS5 version. But Tsushima is my favourite Sony open world game this generation and also the best one on the system bar TW3. I platted it which I rarely do (I didn't even plat TW3 which is my fave game, granted its a much tougher plat). The next-gen loading and the overall feel of the game helped making it very smooth to do so.
I did also notice the TLOU2 drop off. July should've been its first full month on sale. Though it had almost 2 weeks in June. Personally I'd give TLOU2 an 83% and Tsushima a 90%. The press had it the other way around, but luckily it doesn't seem to impact sales that much. The game is making waves and especially the word of mouth is strong, Japanese developers are outspoken about it as well. TLOU2's word of mouth was worse.