Xbox 360 controller works, but will only properly connect if powered on during computer's sign in (either wake up from sleep or reboot)

If I turn my controller on, it won't connect. But if it's on when I turn my computer on (or restart/wake from sleep), it connects just fine. I am using the "Xbox 360 Wireless Receiver for Windows". It's possible it's actually connected but not recognized by Steam or any games, but I am not sure how to troubleshoot that directly. The Arch wiki (linked) doesn't say anything about this specifically.

I am on CachyOS.

Any ideas? <3

Update: This somehow fixed itself. I don't think I even upgraded or anything since it was a problem.