The problem is that they can’t or won’t tell the users which data from what parts of the program they sell to whom for what purpose. Instead, they just make you give up all the rights to all your data in a blanket statement. (I think they did adjust the TOS a little bit, but it’s still far from good)
If AirVPN supports OpenVPN (it probably does), there is a way to have an OpenVPN connection that is not actively used unless you specify it for the app which you want.
For instance with qBittorrent you can select to use the VPN network interface in the settings. This has the nice advantage that it also acts like a kill switch.
It is a little bit finicky to set up for the average user, but if you have some basic tech skills it should be easy with the right guide. If you’re interested I canl try to find it.