Unable to input WPA password to connect to Wifi

For the connman problem:

For VPN settings, you could check here:
https://wiki.archlinux.org/title/ConnMan#Settings
But if you need seamless VPN integration, I think it would be better to replace connman with Network Manager and configure it accordingly:
https://wiki.archlinux.org/title/OpenVPN#NetworkManager-native_VPN_configuration

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