Yes a stable locked 30 FPS with no dips can indeed be smooth
And yes 4K does produce a higher quality image even with lower details
And what do you mean don’t or can’t have
I have gamed on 4K on PC with my previous rig and 1440@120Hz. So yes I can tell the difference
Consoles are much better optimized than PC. So with 30 FPS on a console there’s no overhead unlike PC which in turn can introduce stutter which isn’t all ways caused by the 30 FPS. You have many variables that can cause stuttering frame times, Over VRAM limit, inconsistent clocks, background activity etc
Consoles don’t run into those issues.
I agree that it takes more hardware and sometimes tweaking to get a stutter free experience on PC - but all that really takes is some
effort. Consoles cut that out and offer only what they give out of the box. Its an old discussion, but the fact remains that console hardware is significantly weaker and the results echo that - consistent low framerate feels sluggish all the way through; and the console games offer many examples of frame dips and stuttery behaviour. That started with PS3 and it hasn't ended. Drops to 25 or 20 fps are not uncommon. In addition, consoles suffer from input lag through Vsync and low framerate - easily
10-15x more than you have on PC.
As for optimization, that really isn't so true except for CPU performance and the reality is that consoles
need that optimization or they suck even harder. The GPU doesn't magically push more pixels.
With can't have, I mean that consoles just don't have the options to go faster.