Yep. ProtonDB and WINEHQ mentioned in other replies here are both excellent sites for that sort of information. For native Linux games, sites like Steam, and

Yep. ProtonDB and WINEHQ mentioned in other replies here are both excellent sites for that sort of information. For native Linux games, sites like Steam, and Itch.io both have little icons (often a little "Tux" the penguin, tho on Steam it's the SteamOS icon) you can look for which labels those games as bein' natively Linux. Obviously any game or program you install directly from your Linux distribution's package manager (app store, basically) will be native to Linux. For non-game software (and even some games), https://alternativeto.net/ https://alternativeto.net/ can help you easily find Linux-native alternatives to software that you know the name of from other platforms. Also great for finding interesting software alternatives for your other platforms (iOS, Androin, Win, Mac, etc) too.