I don't know if I would call FTL a process optimization game. One thing I feel like it's missing is feedback if your process is being optimized or if you just got lucky. With Rimworld, Roller Coaster Tycoon, and Factorio all include metrics that allow you to judge if you've made your process better but because of FTLs randomness, it's hard to determine if you played better or just had better rolls. That said I love FTL and it's an amazing game.