As someone who went from PS3 ------> PS4 Day one launch, yeah sure battlefield looked nice, but it was the most underwhelming upgrade since I started gaming back in the NES days.
PS5 won't be "fully taken advantage" of by anyone but first party Sony Exclusive titles for YEARS.
Also no developers are currently "turning the games down" to run on PS4. They are designed for PS4 and PS4 PRO and alot of the time there is little meaningful difference between versions except slightly higher resolutions.
The biggest advantage PS5 has is the SSD with shorter loading times.
Please tell me this is some elaborate troll account, my mind hurts thinking what nonsense here to respond to first. I'll take a pass.