Restore apps deinstalled at main user but available at other user

Hello to all.
I have created a other user and ported some app from main user.
Then I deinstalled the app on the main user.
It writes in apps on main user that the app is not available for this main user. But on the other one I have it.
My question is how do I restore the app to main user.

Or should I just use main user to download apps for all users, then send needed apps to different users.
Leave the apps on main so I can update all apps via main user.

I have tried to make a user profile to download apps and to update there. But I can't port apps from that user to other users. It only works from main user to all others.
Or am I missing something

rustybird What if you don't have option to use ADB

So for people that have no acces to adb best option is to use main user for app porting and updating.
Does that method affect the security on the device?
All the apps on main profile.
They are not activated , I mean you don't have to login in apps at main user. And you can disable network for all apps on main.

Is that enough in terms of security?