- Kid launcher?

My 5 years old son lost his camera and I’ve a smartphone I would like to configure for him as a replacement.
The idea would be that he can only have access to the camera, nothing else for the moment.
How would you do that? Via a Kid launcher? Or by disabling every other apps?
FYI, I’m running an unofficial LineageOS without gapps on this phone.

KISS launcher has a “freeze” mode and you can exclude apps etc

Discreet Launcher | F-Droid - Free and Open Source Android App Repository has similar functionality and you can hide all other apps and just keep camera on screen. Then lock the launcher.