Egg NS needs chips greater than or equal to SnapDragon 855 and RAM of 6GB to support its running. And the system should be Android 11 or later. Otherwise, can only play some light games.
On the upside Egg NS plays my small collection without any issues (Hades, Metroid Dread and Super Mario Odyssey). Onscreen controls are OK and it has support for X2/X3 controllers.
After installation you will need to copy "Switchdroid Folder" and games to your android device (Google is your friend). Once everything is installed setup is relatively easy.
On the downside, in order run games you must create a user account and the emulator only functions online.