From the log, that intel card isn't that old, so shouldn't need mesa-amber.
I do see however that most of the time you are using the intel driver instead of the in-kernel modesetting driver.
Default installs for KaOS do not use the xf86-video-intel driver anymore, in-kernel is for almost all systems better, and is fully maintained. The intel driver has not seen a stable release in over 6 years, and no commits for close to 18 months, so pretty much dead. You still see the same issue with latest mesa and xf86-video-intel removed?
Then 2 more notes from the log, pacman -Qm shows that you have a bunch still installed that are no longer in the repositories (some have been gone for close to 2 years.....), best to run pacman -Qm once a month or so and remove packages that you don't build and maintain yourself.
Second, the intel-ucode package is useless to install, it is only used for kernel building, the ucode package makes it possible to include the intel microcode within the kernel (so you already always have the latest microcodo).