Yes, but the 4090 is the "best" GPU with only minor trade-offs (DP 2.1 support?)
Monitors don't yet have an ultimate "highest res, refresh, brightness, contrast, color volume" champion. If they made a 240Hz 4K QD-OLED it would come close, but it wouldn't be as bright as the best Mini-LEDs, have burn-in, weird pixel positioning (but at 4K you can just use monochromatic AA for text)
The ultimate monitor might have to be Nano-LED, with self-emissive quantum dots. But we won't see those until at least 2025, or maybe even later
Yes, my laptop is ten years old. It doesn't support nvme and its HDD is dying. I need a new one. I'm not going to throw money on a 5000 series Intel laptop with a GPU that has been out of order for five years.
It can't handle AV1 decode even in software. It supports 4K, but not actually fast enough to play back videos in this resolution.
The HDMI port is half broken. Even if I upgraded the other parts, I'm not going to solder a new port.
I also want to support Framework and their goal of repairable and upgradable laptops