Right bud volume very low

I've been using Pixel Buds A Series for 1 month.

Was really happy with them until 2 days ago when I noticed the right bud is a much lower volume than the left bud.

Could wax build up enough to cause the problem? Has anyone got any tips on how best to clean any ear wax out?

I've tried uninstalling the app, unpairing the buds, forgetting the buds then starting again but the problem persists.

Has anyone else had the same issue? I'm thinking my right ear just has a lot of wax build up as the same thing happened to a cheaper type of ear bud product. The right bud played sound but at a much lower volume than the others.