Ethernet Tethering not working with connman

[Dracoit]

I previously had CoreELEC installed, and it worked perfectly fine. However, I wanted a complete Linux experience without limitations. I have the S905X4 4GB/1000GB variant, and although HDMI doesn't work, it serves perfectly as my server for Docker and my Klipper printers. Unfortunately, I'm having trouble sharing the Wi-Fi internet connection through Ethernet tethering. While uning CoreELEC I used Connman for tethering and it worked great, I've tried Connman, IPv4 forwarding, iptables, and DHCP in Linux, but nothing seems to work. It would be great if Connman could handle tethering, as it's relatively simpler to use for this purpose.
If anyone could help me with it.

Thanks