Probably some security feature they put in. Test device: K40 Pro Plus Redmi (Xiaomi). It has a "VPN Always On" setting under VPNs but before you login, it's not available.
Why not make a root app version? That would overcome any issues whatsoever. Like AdAway never turns off, but BlockThis allows more traffic through (like Google Adserver advertisements in browsers, but not in Apps). I think BlockThis! is better other than this little hickup.
Probably some security feature they put in. Test device: K40 Pro Plus Redmi (Xiaomi). It has a "VPN Always On" setting under VPNs but before you login, it's not available.
Why not make a root app version? That would overcome any issues whatsoever. Like AdAway never turns off, but BlockThis allows more traffic through (like Google Adserver advertisements in browsers, but not in Apps). I think BlockThis! is better other than this little hickup.