You can still use a smartphone without having all the negatives from Apple or Google.

For example, GrapheneOS with open source apps. You can set it up so that you have all the benefits of the modern world, but without the ads, feeds, etc. You keep full control of what you see on your phone. You control the phone, not the other way around like the norm these days.

Even better than a paper map because those usually come with ads anyway and are not as useful.