Like the IRFL44N? It's true that it would be easier to design a circiuit with it. The problem is that I'm still learning about electronics and I don't know how to do it yet.
If the data sheet specifies a Rds(on) for a Vgs =5V or less then you know it will work with a 5V Arduino.
Next you have to consider the actual Rds(on). Usually, the smaller the bettor if you are switching high currents
It would be fine for RGB strips also. Of course, for an RGB strip you would need 3 of each component!
I mean RGB strips with 4 connections. The RGB strips with only 3 connections are "neopixel" individually addressable strips. You don't need any MOSFETs for that type.