Game sharing PS5 to PS5

[DaveHouto]

I have a PS5 in my home, I purchased quite a lot of games for my grandson to play whilst he and his mum was living with me. They have now go their own place and she's buying him a PS5 for Christmas. I have read on other sites that I can share the game with him. I'm the primary account holder on my PS5. If we set him up as the primary on his PS5 and add me as a seconardy user on his, will he have access and be able to download the games he has on my PS5. I'll be keeping him as a secondary user on my PS5 for when he visits etc. Is it as straight forward as that or is there something else I need to do.TIA