Piefed has a content filter to remove it. Signing up for piefed.social, one of the first questions it asks is "How tired are you of the Trump/Musk spam?". I just checked my filters, and the only 2 words are "trump" and "musk", and I have not seen a single lick of US politics in any of my browsing over the last week or so since joining. (EDIT: Lemmy doesn't have content filters, I was looking at the wrong info, sorry!)
I get my news elsewhere and I'm part of local political action groups. One of the reasons I left Reddit a couple weeks back was to get away from the constant dooming. Even after meticulously curating my communities, it was hard to get away from. There's a time and place for worrying about news and politics, but anywhere and everywhere 24/7 isn't it.
I can see how it could be a problem if you WANT to see a little bit of it, though.