As you get more comfortable with EmuDeck, you can simply run the same installation file again if you want to pick different emulators or change any of the configuration settings, so don’t feel like you’re committed to your initial choices forever.

Source: https://gizmodo.com/how-to-install-emulators-steam-deck-emudeck-retrodeck-1849934673

The ROG Ally can run any emulator you could run on a standard Windows PC, and tools like RetroBat and EmuDeck make configuring several emulators at once a breeze.

Source: https://www.digitaltrends.com/gaming/asus-rog-ally-review/

With the Steam Deck, I just press You can extend this process out to several emulators, most of which have a list of hotkeys to do basic things like create a save state (EmuDeck usually binds these commands to buttons, for the record).

Source: https://www.digitaltrends.com/computing/dont-regret-buying-steam-deck/