So i was DLing gamemodes when one came with RTB for some reason, but i did not notice.
I had two "Press BUTTON to open X overlay" notifications.
When i started a game, There were checkboxes for both Use RTB AND Use BLG
And low and behold, Both BLG's loading screen and RTB's Infomaniac were there.
I don't see any conflict so far.
Not even the overlays.