Windows 10: Stop random friends from joining my friend's party when I join

So I use the Windows 10 game bar for xbox. I've been trying to play with multiple friend groups but to avoid drama I'd like to make it so people on my friends list can't join me when I join someone else's party by clicking on me and selecting join party. I'm aware there's a set "invite-only" option in the party chat but idk if that option is available to people joining another person's party, so how would I be able to do this? As I'm fairly sure they could still join me if I set my profile to "offline"

:)

 

Stop random friends from joining my friend's party when I join

So I use the Windows 10 game bar for xbox. I've been trying to play with multiple friend groups but to avoid drama I'd like to make it so people on my friends list can't join me when I join someone else's party (by clicking on me and selecting join party).
I'm aware there's a set "invite-only" option in the party chat but idk if that option is available to people joining another person's party, so how would I be able to do this? As I'm fairly sure they could still join me if I set my profile to "offline"

 

Cant join friend on minecraft.

I have been having trouble joining my friend's world in Minecraft. We are using cross platform. I am using a nintendo switch and they are using windows 10. When I try to join their world, it says "connecting to multiplayer game" but is then followed by
a message saying "unable to connect to world". They can join me on my worlds but I cant join them. We are both connected to different networks. Help!

 

Can't be joined by friends in game(s)

I am having a rather annoying issue.

It seems that for some reason I am able to join friends in their games, but people can't join me in my games except for my roommate!

For instance; I am able to join a friend in Dark Souls 3, but she can not join me. Besides that, invaders (other players who want to harm you) also never appear in my game. But my roommate is able to join my game!

Another example, a game called Raft has the same problem. I can join 2 of my friends, but when they try to join it just loads the UI of the game but for the rest it's a black screen and they can't do anything. (haven't tried this one with my roommate cause
he doesn't have this game)

I have looked into:

- UPNP, which is working on the router and my pc.

- the svchost was blocked by Microsoft, but I have put it in the list of exceptions.

- After running sfc /scannow in CMD, it found some corrupt files. Those are (supposedly) fixed.

- Changing my IP to a dedicated one and opening NAT, this also didn't work

- Called Ziggo (Internet provider) to see if it might be an issue in the Router, tried some things but that didn't help either.

- Ran multiple antimalware programs and ran Windows Defender.

- Updated all the drivers.

- I currently have no other Antivirus program installed, just Windows Defender.

I am running out of ideas of what to do. Does anybody have any idea of what I could do?