It will vary by actor. For example, the US military doesn’t like Strava because of its social running feature.
You need to think of the threat model for different actors and groups. There’s a lot of talk now about menstrual tracking for women in the US. Most of it won’t be obvious.

using a VPN ultimately consists in trusting the company providing the VPN service that it won’t be fucking around with your privacy. Considering that all your traffic goes through it, that’s a lot of trust to place in one company.
Is that any different than the trust we place in our ISPs?
I agree with you. I fully expect my ISP/VPN provider to sell my traffic data, but I don’t see the value in paying a VPN do to it.

It’s a pre-wifi 639. It looks like this (but that one isn’t mine).
Phew.