Yes you can. They call it “classic control” in the app. Once single press on the switch is configured for classic control, a button press only switches the load on & off. You can still use all the other smart capabilities of the switch, no problem.
The other single-press mode is “smart control”. When you configure it for this, the load stays powered 24/7, and smart commands are sent to the load (bulb?) to turn it on or off.
I personally have a Wyze smart bulb in the fixture, but control it like a regular light bulb using classic control. That lets me set its brightness and warmth, as I do not want a bright light there.