Restrict media acces

I share Hass with my girlfriend. I have 2 camera’s in my house and I dont fancy her having a peak without me knowing.
My questions:

Is there a way to deny acces to my camera’s to other users?

Is there a way to deny acces to the media-browser all together?

There is another post like mine requesting the same but it hasn’t had any updates in a while:

Is there a way to make this happen at all?

I’ve tried configuring admin only panels but she keeps finding a way to work around it (clever girl).

I also would like this. Best I have seen is another post from someone who created a second instance of Hassio and passed on only the devices they wanted via an add on for their kids accounts.

The authorization system in HA is fairly basic so far. So much that you can’t really prevent other users from accessing any entity. wolfhunter1043 suggestion is the best I can think of.

Personally I don’t use HA for cameras, but have a dedicated server for that with a robust permission system.