So I had researched it a while ago and don’t recall having found anything effective and non-suspicious to protect from public camera mass survaillence in cities and the like. Is there anything that is a good option for that yet, and if so, could you point me toward it?
There is no effective technical solution for political problems. If you find one, it will soon be outlawed or rendered ineffective (eg if you wear mask and sunglasses, prepare to be harassed by law enforcement). Lobbying to stop unconstrained surveillance is the only option.
If there is no other option than lobbying then there is no real option. The public has rarely ever effectively lobbied for their interests.
I wouldn’t be so pessimistic. When more people personally experience survelliance abuse, things will get interesting.