Understanding gate threshold voltage of logic level mosfets from datasheet
Look for the Vgs at which Rds(on) is guaranteed.
Vgs(th) is the voltage at which it is mostly off.
Edit: From your linked datasheet:

If you have 5V drive you can count on 12m\$\Omega\$ maximum Rds(on) with the
MOSFET at room temperature (maybe 50% higher with it hot).
If you have 10V drive, it is lower by almost half.
There is no guarantee for 3.3V so I would suggest not using that particular MOSFET with 3.3V drive. It will turn on somewhat, for sure. Typical curves in the datasheet should not be depended upon.