PCIe 5.0 M.2 SSDs

All the current PCIe 5.0 SSDs i could find. Early 2023 it was a speed of 10000-12000MB/s and the second wave is coming with 14000-16000MB/s.

Are you using one despite the thermal issue ? Beside creators and professional using it for rendering 4K and 8k Photos and movies what is the use ? Does it really impact for the gaming ? Snake oil ?
I’m happy with my NVMe M.2 PCle 4.0 Samsung 990 Pro 2To (7450/6900 MB/s).

I set it up on my Gen5 port of my motherboard. Is it silly or? It should be backward compatibility if I'm not mistaken ... Is there things that I am not aware of regarding reading and writing performance max ?