to connect to your WIFI ensure that your device and the WIFI within the maximum range and also make sure that there's no obstacles or you check with the service provider as it may the problem not from the device itself or you can also reset the network setting from the device settings-general management-reset-reset the network settings
make sure that flight mode is turned off
check bixby routine
make sure dear that you are in place where there's a strong signal
and your device doesn't block the device antenna
if you still face the same problem kindly check with the service provider
and check the network coverage
try to restart your device in the safe mode
also you can test that by using Samsung Members app: kindly go to get help page -then interactive check-select wifi
Hope you and your family staying healthy and safe!
