There’s no way to own and/or have installed both Minecraft Beta and Non-Beta at the same time?

It says I won't be able to connect with non-beta players if I join the minecraft beta, so I'm not sure if that's going to help me connect to multiplayer servers. Unless I just need to have it installed but disabled?
Edit: I installed it and it activated the beta, and I get the same message when trying to connect to a server.

I've tried both the normal and the beta versions of the app to no avail (same problem in both cases, really), and have ensured everything is up to date (the app, the Store itself, Windows, etc.) and tried every permutation of these already (trying the non-beta
app, trying the beta app, trying the non-beta app while the beta app is also installed, trying the beta app while the non-beta app is also installed).

All I can do now is hope the game that requires the Companion App will switch to using the Xbox app at that point in time, because said app opens just fine, beta or not; unfortunately it doesn't allow me to bypass the original issue, which is that the game
I want to play (while I can launch it through the Xbox app!) won't register my access unless the Companion App is functional.

Still, if you have any ideas as to how to fix this on a file by file basis I'm open to suggestions.

Thank you!

Your friend may indeed have a beta version of Minecraft. If that is the case, they will not have access to Realms and will not be able to join non-beta players while previewing the beta.

If you have the Xbox Insider App (either on your PC or your Xbox One), start that app, and leave the Minecraft Insider Program.

Uninstall Minecraft and then install the non-beta Minecraft version again.

If you have the Beta app installed please make sure your signed into the same account on both the Beta and the Xbox Companion