some forum links are good. I've seen a case study last year where someone had ranked in the medical niche with only forum links (no EEAT whatsoever), it was hard for me to swallow this when I always brag about EEAT in health / medical industries, but it was true unfortunately. But it's also true that those were quality forum links, as in, links dropped in threads (like the one we are on now) instead of profiles. So that mattered...
Take a look at the links and see where exactly they come from and if there are within threads / content (especially if it's aged and indexed content) they're good links...