Well, there are some ways to have more control on permissions.
But as Jolla and community devs have other priorities and no thousands devs to solve everything at the same time, it is not very polished and plug and play yet.
But apps permissions can definitely be tweaked.
First, get root (devel-su) access, terminal or terminal via the PC.
Then, you’ll be able to edit files and change to your taste.
The links to the documentation given above are good to read, as well as some threads like this one or this one or some other search results.
Don’t hesitate to ask if you are blocked after having searched/read everywhere possible.