Hello.
There are often issues when, either two friends play together and a common one supports one of them, or somebody supports his friend opponent in a game.
The question is why have a friend and support his opponent? Or why have 2 common friends playing together and still choose to support one of them?
On the other hand, why to keep having a friend supporting your opponent instead of you?
If this is on purpose, then you can always delete the 'bad' friend.
But probably sometimes it is made by mistake.
Proposal: Nordeus could simply forbid to support against a friend. Do an update and make it not possible.
For example, a friend plays. You can support your friend or stay neutral. But you can't support your friend's opponent.
In addition. Two friends play. You can't support either of them. You only remain neutral. No support button.