Hmm, okay, thanks!
I tried to remove the headset (but I use it often so it would not work for me to only be able to use one of the devices at a time) but this did not help.
But I have been able to use my old apple BT keyboard at the same time as my headset and Apple BT mouse.
I have looked at the arch wiki page aswell, tried their solution for keyboard connects and disconnects (under troubleshooting). This also did not help.
Okay, you mean bluetooth is crappy overall? I prefer BT because I only have one USB-C in my laptop, so I would have to use the adapter and connect a dongle thru that, so that would be more things I would have to carry with me to the university. Which I dont really want.
But as I said, I had the same problem with my apple keyboard before, and suddenly it started working perfectly. It was at the same time I had some problems with my graphics (which I made a thread about here) and I concluded that the extensions caused the trouble. But I also downgraded the kernel.
Is there any list of devices that surely works with antergos/arch?