What does a 5V gate drive mean?
It means that it can not charge the gate voltage higher than 5V. Therefore you need to find a FET whose parameters (on-resistance or drain current) are acceptable for your application at VGS=5V. I am sure there is some information in the datasheet or in related application notes.

Historically power FETs needed a higher gate drive, but nowadays 5V power FETs are common as well. The main reason behind this reduction is that modern CMOS technologies have a much lower breakdown voltage (nowadays below 1V) where generating 5V output is troublesome if not purely audacious. Even though power chips tend to use higher line width technologies, a high current 5V output is already a challenge to design due to the ringing of the RLC network, which consist of the FET gate (C) and the track and bond wires (L).