I have 5G switched off by default. I don't know how much difference that makes, but it will probably make a difference, and 95% of the time 4G is enough for me. It would be interesting to know how it looks 4G or 5G versus WLAN only. Also regarding battery consumption. Does anyone know more, especially general statements from other models?

The FCC (American Communications Commission) tests all devices.
Very interesting: All manufacturers assume a SAR value with deactivated WLAN.
Here you can see how much radiation the devices emit with active "mobile data" and "WLAN" (Simultaneous ):
https://www.rfsafe.com/sar-values...

S23 Head: 1.58W/kg
Body: 1.35W/kg

By the way, the upper limit in the USA is 1.6W/kg.

The whole thing is highly questionable.
That's why I won't buy an S23. Sony Xperia models sometimes have half the radiation (Xperia 5 IV).

handystrahlung.ch has something, but not definitive either:
https://handystrahlung.ch/sar.php

So far, no values have been published on the usual pages.