I use Audio Profiles addon for quick changing between HDMI and Pulse Audio.
I suggest getting earbuds that don't require that. E.g. on my JBL Tune 125BT the lipsync is perfect.
I will check out the Audio Profiles add on, probably exactly what I'm looking for!
As far as offset.. I'm using Sony WF-1000XM5's so not sure what could be going on