Hello, i've read all the chapters currently released and maybe i can adress some of your concerns. !!!Spoiler warning!!!
First of all, the Prosecutor is (imo) never really a ML. He's just there for the plot, since the MC falls pregnant and will assume it to be Prosecutors child when in reality it's not and this causes some pheromone omegaverse type issues. I personally also thought the later chapters didn't really attempt to portray him in a positve light. In the end MC chooses the silver-haired guy, despite thinking the child is Prosecutors. Same goes for silver-haired guy choosing MC.
Secondly, i don't think Alphas and omegas actually share cells unless they are in heat and have requested a certain inmate as a Partner. They do however meet in the cafeteria and the yard but any unwanted contact is prohibited. There are two guard/inmate couples tho. One doing it for favors and the other having actual affection.
In the end, i would consider the MC and ML a nice couple. MC does become more loving towards the, not subservient though as hes still quite feisty. ML is also loving in a less controlling or obsessive way than usually in these stories. He wants whats best for MC. I do think this author has given more 'diverse' side couple dynamics than usual and i definitely tought it was worth a read. You just have to keep in mind that there is violence and everyone gets pregnant.
It does ultimately depend on taste, this story might just not be right for you, but i think placing it in rank 2 on worst omegaverse is crazy considering whats out there.
Idek how i ended up writing this fucking essay, i'm not a super fan of this lmao. Thank you for comming to my TEDtalk
Look, I've read a lot of omegaverses and I only know of one over all universe that I've hated more than this one. (One where a teacher raped a student and a minor was allowed to be raped by his older family member to help him more quickly develop into a "proper omega" and how being claimed makes the omega totally subservient to their claiming alpha)
But this universe is coming into a strong second place. The author is attempting to prop this prosecutor up as a good guy, a prosecutor who will go after justice no matter who the bad guy is, even if it means taking down another prosecutor. But what do you mean he coerced the MC immediately into unwanted sex? What do you mean he locked him into a room filled with his pheromones so he can fuck(rape) him again because he banged up his car?
WHAT THE FUCK DO YOU MEAN THEY LOCK UP OMEGAS WITH ALPHAS AND DONT GIVE THEM SUPPRESSANTS IN PRISON?!?!?!?!?!
That's like locking up men and women together in prison. Literally the exact same thing. I hate this entire universe. That's not discrimination, that's all fucking crimes against humanity. This MC would do better in any other universe istg.