So from my experience, I replaced my 8+ year old omen laptop with an MSI 3 years ago then installed garuda on the omen. Tested some games on each and the performance was similar until graphics were set to ultra just dye to the hardware difference. Before installing linux that laptop performance was struggling, so it really breathed life back into it and made it viable again. Hell my wife uses it to play stardew valley now and I used it to play ffxiv a few times.
So from my experience, I replaced my 8+ year old omen laptop with an MSI 3 years ago then installed garuda on the omen. Tested some games on each and the performance was similar until graphics were set to ultra just dye to the hardware difference. Before installing linux that laptop performance was struggling, so it really breathed life back into it and made it viable again. Hell my wife uses it to play stardew valley now and I used it to play ffxiv a few times.