SEO traffic been dropped since January

For some reason, our traffic from Google has been dropping since early January. We didn't make any major changes to our website during this time, but I have no idea what's been happening. I checked through the data at GSC and Ahrefs, and it seems like a few of our pages were essentially deranked at this time and since then traffic has been gradually declining. Were there any core updates around this time? We're a SaaS and the landing pages that wer