MARZ VPN
Open-source VPN client for Android, Windows and Linux
Open-source MARZ VPN client apps for Android, Windows and Linux: one-tap connect, servers in the US, Sweden and Russia (VLESS with REALITY), sign-in with Telegram or email, plan and traffic shown in the app. English, Russian, Persian and Simplified Chinese.
Windows and Linux apps include a Kill Switch (on by default, can be turned off in Settings) and DNS protection.