Not really

microcheating me thinks?

no

Cheating starts when you feel the need to hide things from your significant other.

For me, it isn't cheating just because he doesn't you talk to random people cuz just like you said you only talk casual with does people (sorry for my bad grammar english isn't my first language)

do you like the thought of him talking to random people?

No it's not. Pero better na ipaalam na lang sa kanya

he cant contain you and expect you only talk to him. Unless no deep intentions you have with the random ppl u talk to then its never cheating. Nths wrong w talking to others and its toxic if he thinks its wrong.

To make ur relationship work.. tell him.. if your just doing casual chats then nothing wrong telling ur partner

it depends on your intention. like, why do you talk to random people in the first place? how do you feel talking to random people? and what do you mean nu random people — men, women, gay, lesbi, young, old? or just men? if just men, go back to my first and second question. then, evaluate yourself if you feel guilty. and if yes, why do you think so?