Having the exact same problem. Noticed it this morning when I started playing DOS2 (NS2 edition) during my commute.
Didn't have any issue on Switch 1.
I use Sony earbuds wf-1000xm3.
Important update : I noticed I encounter the problem on every games on the Switch 2. So it seems that the issue comes from the console.
Last edited by ihadim; 10 hours ago.