@lina @kaia @SuperDicq probably an issue with however it does the passtrough

usually the built in screen is hooked up directly to the iGPU, and the dGPU's output is funneled trough that to the internal screen (altho not all laptops do that)

the intel driver could be at fault too (Intel doesn't have the highest quality GPU drivers), altho it's hard to say when I can't poke the machine myself

I'd say stick to an older kernel till this gets fixed