You have to define what next gen is, because this narrative gets confused with art work. HFW and Tlou2 on PS4 still look better than 99% of games releasing years later on more powerful hardware due to the animation and art work. Huge amount of details went into making those games look impressive. On the flip side a next gen only game like Returnal IS pushing the ps5 to its limits, but it does not look as good as those two.
Spiderman 2 pushes the ps5 to its limits. Its has the graphics, the option to travel very fast through the city by gliding or swinging and can be played above 60fps. I cant really think of another game on ps5 that allows you to play with raytracing on at 60f fps besides Rachet and Clank.