Adaptive Controller - Can you help?

Hello, was just gifted the meta quest 3 w Batman - totally psyched to try everything with this platform! However, my husband who was born without a left hand - cannot play a lot of the games. This hurts my heart. He has an Xbox controller that he can add a flapper gear to the bottom of on his right hand side so that it acts as a left handed control. I was hoping someone would be able to come up with a similar solution here. 

I get it, not everything is for everyone - we all have certain limitations, but in something that is supposed to open the world, it should open it for all. There are a lot of ppl out there like my husband, enlarging the customer base, generating income - just a thought.