iPhone 14 and the forums

Ever since my last iOS update (17.2.1) my iPhone 14+ gets HOT while scrolling through the forums via Safari. The upper left part of the screen gets so hot it’s uncomfortable to touch, and then the screen starts to dim. Is it because many of the posts have video and picture links?

Everything else is fine; YouTube, Reddit, Tiktok… just the forums. I’ve rebooted the phone as per Apple troubleshooting, but I’m not sure what else to do.

Any suggestions?