The majority of games that are 10 only are either boring (Death Stranding), buggy (Horizon Zero Dawn, Sea of Thieves), or UWP (Forza Horizon 4, Minecraft Bedrock), which requires dealing with a launcher worse than Epic and DRM worse than Denuvo.
Everything else "8/10 only" either works on 7 with modifications (Mafia: Definitive Edition, Postal 4, System Shock Remastered), or just works out of the box without any modifications (Crusader Kings III, Detroit: Become Human, Destroy All Humans!, Fall Guys, Persona 4 Golden, Watch Dogs: Legion, etc)