@Erpel kinda sad that these hybrid-graphics laptops are such an issue on Linux. A mobile 1080 (which is really a 1070) is still pretty capable. Sucks that nvidia had to do everything different on linux.
I hope you do have some fun times playing some games ahead of you. I can really relate to that problem. Just last week when Assetto Corsa decided to be rough even though proton-version did not even change and it worked before.