People cried before launch and still cry you have to swap covenants every time you did different content (m+, raiding, PvP) but this isn't the case for most people and everyone should just pick one and not swapping it every week.
https://www.reddit.com/r/Competitive...ious_covenant/
Here is long QQ post in reddit during beta that you have to swap every other night if you wanted to to different content but I can tell you: just pick one and stay on it it doesn't matter if it's not the best for PvP or M+ you'll just fine.