It's interesting you had problems with the AX200 chip, I bought one for my X13 specifically because it has good kernel drivers.
On Ubuntu, there's a "hardware enablement kernel" package, linux-generic-hwe-22.04, that's just the kernel from the latest Ubuntu back-ported to the LTS version. I find it tends to fix most issues with newer hardware. Maybe PopOS has something similar?
Anyways, I found the MIMO in wifi 6 was better enough that I even upgraded another old laptop I have with an AX210 I found for $14.