IP address on lte interface is different from the IP addressat the other end of the Wireguard tunnel

Do you consider your wg-c-droixhe wireguard interface, LAN, WAN or something else?

The default firewall and nat are based on categorizing the interfaces as belonging to either LAN or WAN (but I see that you already have modified, possibly beyond any hope of recovery the default set of rules).

You should (IMHO) re-start with default firewall per Rule #8:
The twelve Rules of Mikrotik Club

right now with those rules disabled you are exposed to the outside.