Daily driver experience is much like the other brands. From installation to updates. There is no built in streaming or recording in the Intel software anymore so you will need to use other apps if your kid plans to use those features.
Older games are problematic. Some run well, others are a bad time. The best solution for the DX11 and even older DX games that run poorly is to use -
DXVK
https://github.com/doitsujin/dxvk/releases/tag/v2.6
DXWrapper
https://github.com/elishacloud/dxwrapper/releases/tag/v1.2.7500.25
Just drop the appropriate 32 or 64 bit files in the same folder as the game exe. For new games; there are a few engines like creation engine 2/ Starfield, that do not play well with either ARC A or B series. Performance can be rather poor. But most newer games are great. The system you won should have at least a 245K? powerful enough to not suffer overly much from the CPU overhead issues on ARC.
Any particular driver release can be flaky, so if all of the games are running well don't upgrade drivers is my advice. Only if playing a brand new game do I upgrade if things are going well. Or if some of the old games I play are listed as improved significantly.