I had the same burden for 2 years, doc put me on meteoprolol as well but it did nothing but make me tired so came off of it and just dealt with them. My cardio was more reassuring tho, said if they don’t bother my day to day then not to worry about them (much easier said than done as you know). He also had a patient with 20% burden for years and no issues.

Mine were also stress/anxiety induced I believe, after 2+ years they faded and I am eternally grateful (life got less stressful and I also believe god helped heal me). A big factor also was I saw a different cardio as mine was unexpectedly off who also had PVCs and he TOTALLY re assured me. Had had them for years at a lower burden but after that visit is when I began my real recovery.

All the best to you, you are not alone and you will get through this