Wasn't it already established from the beginning though? He can only ever be his actual self either inside the portal for script analysis or when he's alone at home. Aside from those two, he can NEVER show himself in public again even with family. Thus, the unending number of misunderstandings.
Also, I don't think you'd be impressed anytime soon if you wish to see him falling. The novel itself is an ego-niche, and as far as I remember, his only way is up. Kinda like when reading One Punch Man, best way to read is to turn the brain off and enjoy the humor.
Obviously he has to keep up his image but the pure fact that everyone surrounding him thinks hes a arrogant genius actor who become the best actor is crazy. Like he has family and friends who know him but that doesn't mean hes with them all the time. From what I remember he only sleeps 5 or 6 hours and works for the remaining 18-19 hours, this just screams burnout to me. Theres no work-life balance. Obviously im not an actor so I wouldn't know their schedule, but they also take some time off thats for sure. Do you get what im trying to say? Anyway, you reminded me to rewatch one punch man tho ( ̄∇ ̄") see ya
(OH and one more thing actually, even if he took it a bit more easy the media would still write articles about him BECAUSE hes that good of an actor welp)

If I had to be completely honest, I need our Mc to step in dogshit at least once!~~~~ Don't get me wrong, i love a good actor manhwa with different movie genres and lots of characters. Everything is a go and repeat process tho. Mc uses his skill = everyone is stunned = hes gaining more popularity = more people want to cast him in their movies.
I like that his ability is evolving but honestly its not even that big of a difference to me while reading. I didnt read the novel but the author definitely took their time when the manhwa is on ch 100 the novel is on 300 so maybe thats the problem.. or not ( i won't read the novel lmao)