Hi there, may I ask if you are using pipewire or just pulse?
I haven’t tried any bluetooth audio things yet, I don’t use pulse straight however. I let pipewire and wireplumber do things, which has been mostly pretty good.
Which kernel did you install? I guess it’ 6.13, right? I have the same problem, with my bluetooth headphones when I’m using wifi. (It works for ethernet.)
You could test linux-cachyos-lts instead (which is currently at 6.12).
I have a Sony WH1000XM3 connected via bluetooth to a Fiio dac.
I use pipewire.
After the update to kernel 6.13 I had sound hickups in youtube and while gaming terrible distorted sound in cyberpunk. Especially with lots of noise going on e.g. during gunfights etc.