I think my favourite dynamic between Prism and Robert, ship or not (which btw what's the official ship name? Mechaprism? Prismech? Ledlights? Tecnicolor?? i dunno) would be "coworkers/friends that are also mutual fans of their work"
Like Prism is a Blazer girlie first and foremost, but she's also a Mecha Fan to some degree. When the clip of Robert beating the living shit out of the reporter gets posted on socials, Prism is on the frontline defending him and arguing in the comments section with people who say his reaction "Was totally uncalled for" "Guy spitted on Mecha Man's whole damn career because he didn't fucking die like some kinda martyr! Bitch took out his damn phone, typed the damn number, said 'Hey, go fuck yourself', ended the damn call and didn't expect Mecha Man to call him back?! 'Uncalled for' my ass!". And like part of that is because she likes the guy but also, as a famous popstar that also has dealt with asshole journalists, she empathizes with him.
She later makes a post that says "He was so real for that btw", followed by the same clip but with one of her songs playing in the background. It's surprisingly on beat with the scuffle.
Robert obviously didn't know who she was before working at SDN, and he strikes me as someone that doesn't listen to music that often, so it takes some prodding from Prism (and Flambae, always gotta support your bestie) for him to start listening to some of her songs. Needless to say, he becomes a fan. He hums her songs while walking with Beef and while working, which he obviously he gets teased for by both the team and Chase but honestly? He likes it, so who cares? Prism is openly smug to everyone about that, while also kinda giddy on the inside cause oh my god Mecha Man likes my music!
At some point, while going thorugh her previous albums, he finds a music video where Prism raps about the most famous superheroes in Torrence she would fuck. Was the video made before or after she joined the Phoenix Program? The choice is yours. Not only that, each hero gets their segment sung while Prism wears an outfit based on them.*
Surprise surprise, Mecha Man is in that too, which is both flattering in a way, and also mindopening in another, "Wait, is that where the #RidingThatMechaDick that trended three weeks comes from??"
Also, they have merch of each other, obviously. Robert is kind of fucking broke so he can't afford himself to buy shit initially, but Prism gets him an exclusive, there-are-only-fifty-of-these-in-the-world poster of her, the kind you can only get through raffles, contests, or selling you kidney; and, well, let's just say one of Robert's walls is now worth thousands of dollar more than the others, for some reasons. That poster is only the beginning, don't worry.
One time Prism manages to get a selfie with Robert while he wasn't expecting it. Turns out kinda blurry, but Prism keeps it anyway. "Why?" "Cause you the only one in the squad I ain't got a photo with! By the way, can I post it on my socials? Promise I won't get ya doxxed!" "Sure, um... could you send it to me too? Like, on dms or something. " "Hell yeah, 'course I can! Just don't go flauntin' it around, wouldn't want my fans to believe they can just get pics with me for free! Consider yourself one of the lucky ones, MechaBob!" "Oh I do, don't worry about that."
That photo ends up being one of the few non-Beef related photos he has saved as his favorites on his phone. Meanwhile it takes all of Prism's willpower to not brag on her stories about how she managed to get a close-up selfie with THE Mecha Man, something that no fan of his has ever managed to get.
Yeah so anyway... fun stuff right?
*note to self: fanart idea of prism wearing Z-team members themed outfits.