Hello Saoud,
I’ve been actively building since 2003. I have full PM suite software for A320 , you may read more on my personel blog how the software developed over time.
https://www.okansacli.com/post/flight-simulation-software-venture
I have decided to use ProSim in my setup since 2020 due to many reasons. In my opinion it is the best simulation software out there, still evolving and developing but it is simply the best. My suggestion would be prosim.
Best Regards from Istanbul
Okan Sacli
okansacli.com