Unless the drywall is foil-backed, or you have metal objects between you and the WiFi router/AP, you should be fine with signal reception . Another consideration would be if you are launching a signal through an exterior stucco wall.
Read moreWhy can 5G pass through walls?
5G has a similar RF frequency hierarchy. If you have a clean, fast high frequency connection it will automatically operate using that one. If not, it will fall back to a lower frequency connection (one able to penetrate obstacles and walls better) and has a longer range.
Read more