My friend group drags my mood down without knowing

Feel the need to get this off my chest before my brain spirals too hard about it.

My online friend group usually talks about politics, bad past events, or vents. Before I met my current irl friend group, I was fine with this. I listened to their vents, occasionally joined in on some conversations I felt I could, etc.
I met my irl friend group a few months ago, around October of 2024. They’re funny, constantly cracking jokes and teasing each other, and they’re always a joy to be around. Even my introverted self can’t help but feel full of energy when I’m with them. It’s amazing, and I couldn’t ask for anything more.
The problem is that I’ve gotten used to this happiness when hanging out with my friends. I don’t feel happy most of the time that I’m on call with my online friend group. There’s really only one person that actually talks about anything positive, and they’re easily swayed to talk about other things if somebody else changes the topic. I’ve tried to push past this but I just immediately zone out or get frustrated when negative topics are brought up. I don’t know if it’s just because of the current state of the world, or if I just never noticed it, but the topic ALWAYS changes to something bad.
I understand that things can’t be all sunshine and rainbows, but a constant storm is awful for anyone. This pattern happens even when I’m not doing fun things; I’ve asked for one friend’s help and feedback on a project several times and they don’t even entertain it for more than five minutes before they start talking about negative things again, with or without other friends changing the topic.
I dunno, this whole thing is just frustrating and depressing. It’s not like I can tell my friends, “Hey! I know the world’s kinda fucked and you wanna talk about it, but you’re being a drag and need to stop if you wanna see me again.” Like that’s not something you say to a friend. I’m not sure what to do beyond distancing myself, and I hate doing that but I’m losing my mind over here. I’m clinging to positivity as much as I can.