Is there any way I can use a proxy on Android on a per app basis instead of system wide? Just like for some who don't want absolutely everything to be routed through a VPN, some VPNs offer the option to include/exclude applications. That's exactly what I'd like to do, just with a proxy on my phone.
Yup, Firefox was a thought but I wasn't sure if extensions were a thing on Android. I do use FoxyProxy on my desktop so it would come in handy if it'd work on my phone too.