Should I replace the stock fans that came with the NZXT H7 Flow?

Hello!

I just bought a NZXT H7 Flow case and it came with two F120Q fans that are not PWM. I also ordered 3 Arctic P12 PWM PST fans and now I'm wondering if I should've also replace the ones that came with the case. I want to have 3 fans in the front, and 2 in the back (top and back).

What do you think? Are the stock fans good enough? Am I gonna have any issues if I run different fans?

Thank you!