Ironically, Frieza has a pretty decent character development in Super, despite not being the protagonist | co-star of the manga
After his defeat on Namek, Frieza only thinks about revenge, without taking precautions, and ends up dead because of it, (being tortured in his own way in hell),
Which leads him to consider preparing himself before trying to get revenge on Goku again after being revived, however, he rushes and ends up discovering that he made a mistake again, by coming immediately after obtaining more power (a mistake he made in the past, but probably happened so as not to start his development halfway in Super)
Again in hell, and now with plenty of time he begins to train his transformation, which leads him to learn to be a little more patient, and he begins to take advantage of the people and their possibilities around him more (I doubt that the Frieza of Z decided to join the same team as Goku, or that Goku was given energy in the anime)
In Broly, although I don't remember much from the movie, at least he seems to respect Goku as an enemy to a certain extent and be calmer, he was respectful enough in Super Broly to describe a word that Goku didn't understand and he accepted quite calmly that he couldn't do anything against Gogeta when the latter stopped him from shooting Broly's friends.)
After all that, Frieza begins to stop prioritizing the Saiyans, and again begins to focus on his empire, turning it into a real threat to the universe againn, which leads to him using the time room for 10 years instead of the time needed to get a new power, and although he hates the Saiyans, he doesn't kill them because they are no longer a threat to him, he has already overcome his immature tendencies based solely on revenge that he had post Namek until Ressurection or F
Along with Vegeta, I think Frieza is one of the characters who gains the most from being in Super.