Surveillance surrounding car infrastructure is the most notable currently, but every larger public transportation hub has cameras all over too, together with on-board cameras in pubic transit vehicles, which are monitored in real time (despite moving around constantly). Perhaps you could give me a generalized description of your whereabouts and your activity, so I have a little bit more context on your surroundings. And yes, like I mentioned, it's technically not allowed to have private cameras facing the public space, but without enforcement, you might as well not have it (or actually incentivizes people to hide them).
I'm quite interested in your experience in Prague, and would love to hear more about it. From your description it seems cameras in Prague are very apparent, which I consider to be a good thing. Whereas in The Netherlands surveillance systems are often installed to be unobtrusive; including those installed by authorities or businesses (which are typically recording the store's entrance; and as a "by-product" the public space; and dome-style cameras are increasingly placed in public retail areas too: mounted (typically in groups) on poles, or to exterior of buildings).
Same over here, with local chains increasingly forced to shut their doors (primarily as a result of the COVID pandemic, and the various developments ever since). And I completely agree, for most people it's physically an unnoticeable change, but the change from: local, short-term, manual systems, to digitally transferable, long term, and automated ones, makes all the difference.
I'm quite confident most large chains were somewhat forced to have modern, GDPR-compliant systems in place (like Genetec for instance): undoubtedly allowing for integration of such analytics tools. And apart from that, they've had trackers in their carts (hidden in the locking-chain, or wheel-break assemblies) for as long as I can remember, and likely track user-location through app-use, or dedicated scanners too (for scanning products before you place them inside your cart); so I'm quite positive they utilize surveillance systems for that too.
I would just love to see those, that claim to be human, which are knowingly in support of these systems, try to justify the ethical ramifications in that statement alone. Which is "just" restricted to grocery shopping for now, but if the current trend continues, you'll effectively become a prisoner to your own home. And quite rapidly so, if Europol's ambitions to protect citizens from hypothetical adversary (kamikaze) drones, by use of drone swarms, atmospheric satellites and microphone meshes, becomes reality.
It's an insane timeline we're living in, and it's so easy to give up all faith; but perhaps that is exactly what they want us to do. For us to feel powerless, and believing we are incapable of making a relevant change. I share the same ambitions as you, and I believe most human beings do naturally; but it's becoming increasingly difficult when you have principles to stick by. I've already experienced this by transitioning away from big-tech platforms, and I would absolutely hate this translating into the physical world.