sagemcom in bridge mode. to avoid 2xNat

Since the Arcadyan KVD21 5G Gateway's DHCP server cant be turned off, I decided against using a router, even in access point (AP) mode.  What is it you're trying to accomplish by putting your router in bridge mode? I find the WiFi coverage is on a par with my TP-Link AX50. I am using one WiFi extender, a Netgear EX2700, to cover an area in the back of my house.