** Check for specific domains being connected to that only a Windows PC would connect to, but not an Android phone, to assume the current month is all tethered traffic
** Using link:https://en.wikipedia.org/wiki/Deep_packet_inspection[DPI software], traffic can be shaped/tampered/manipulated/throttled based on certain criteria(s), such as Video Streaming (making YouTube videos or Netflix buffer more, some like T-Mobile force lower video quality)
A paid VPN is recommended since it's easy to route all traffic through it, and shouldn't reduce speeds (if the VPN connection is on a device with link:https://en.wikipedia.org/wiki/AES_instruction_set#x86_architecture_processors[AES-NI support])
* Servers are only located in countries with lots of transit capability (for South America, is only Brazil)
* No fake server locations (unless for streaming purposes on specific domains/websites, and is stated as such)
* All server locations allow all forms of traffic except outbound port 25 (to prevent email spam abuse)
* Word of mouth advertising; not shoved in your face by sponsored YouTube videos and Google Ads
* VPN's company is not based in a tax haven country; tax haven = profitability is heavily considered, meaning they'd likely sell your data to earn more profit
* Ability to link:https://airvpn.org/faq/port_forwarding/[select ports to forward] (not just a randomized port on connection, as is the case with PIA/Private Internet Access)
For your own research, avoid all websites recommending VPNs under the parent company "Kape Technologies": https://restoreprivacy.com/private-internet-access-kape-crossrider/
* Recommendations:
. link:https://airvpn.org[AirVPN] | link:https://airvpn.dev[AirVPN #2] | link:http://airvpn3epnw2fnsbx5x2ppzjs6vxtdarldas7wjyqvhscj7x43fxylqd.onion[AirVPN via Tor]
. link:https://mullvad.net[Mullvad] | link:http://o54hon2e2vj6c7m3aqqu6uyece65by3vgoxxhlqlsvkmacw6a7m7kiad.onion[Mullvad via Tor]
. Cryptostorm (best at bypassing VPN blocking due to competitors not having the "port striping" feature, which is link:https://archive.is/6LyZf[documented] on how it's done)
TIP: Trust-worthy free VPN providers, but have slow network speeds: +
1. link:https://riseup.net/en/vpn[Riseup] | link:http://vww6ybal4bd7szmgncyruucpgfkqahzddi37ktceo3ah7ngmcopnpyyd.onion/en/vpn[Riseup via Tor] +
2. link:https://cryptostorm.is/wireguard[Cryptostorm] | link:http://kzaeunogz6s75ptgy6ifjzwwy75xdfenenswvrczd7mewxgrad5a.b32.i2p/[Cryptostorm via I2P] (I2P > Tor when available) | link:http://stormwayszuh4juycoy4kwoww5gvcu2c4tdtpkup667pdwe4qenzwayd.onion/wireguard[Cryptostorm via Tor]
"Our free WireGuard server works the same as our "Cryptofree" service: bandwidth is throttled to roughly 160kbps down, 130kbps up. Not fast enough to watch any HD videos, but plenty of bandwidth for sending an email, browsing a website, IRC, etc."
** Known kernels with support (and seem high-quality):
*** Freak07's link:https://forum.xda-developers.com/t/kernel-23-07-2021-android-11-kirisakura-1-1-8-for-asus-zenfone-8-aka-sake.4295287/[Kirisakura] for ASUS ZenFone 8
For kernel tweakers: link:https://web.archive.org/web/20210423030541/https://forum.xda-developers.com/t/magisk-stock-bypass-tether-restrictions.4262265/[an aid with enabling "xt_HL.ko" support through Magisk]