Desperate for Help: Persistent AdSense Layout Shift Breaking My Site's Mobile UI After Recent Update

I am absolutely at my wits' end and honestly, I'm pulling my hair out trying to fix this. After a recent update to my site, which I thought was fairly minor, my mobile UI has completely gone to hell thanks to persistent AdSense layout shift. It's not just a minor jiggle; we're talking about entire sections of content jumping around, overlapping, and making the site practically unusable for anyone on a phone. The Cumulative Layout Shift (CLS) score must be through the roof, and frankly, it's embarrassing. Specifically, the AdSense units, particularly the responsive ones, are causing significant jumps in content both before and after they load. On mobile devices, this often results in the ad covering vital navigation elements or pushing the main article body halfway down the screen, leaving a massive blank space or an unclickable mess. I've spent the last two days straight trying to debug this. I've meticulously checked all my CSS for any potential conflicts or inherited styles that might be affecting ad container sizing. I've gone over the AdSense unit code itself multiple times, ensuring I'm using the latest implementation and that any data-ad-format or data-full-width-responsive attributes are correctly applied. I've tested responsiveness on every browser developer tool emulator imaginable, from tiny iPhone SE viewports to larger tablet sizes, and the issue persists across the board, though it's most egregious on narrower mobile screens. I even tried temporarily disabling other third-party scripts, thinking there might be a script conflict, but the problem stubbornly remains. I've experimented with fixed-height containers for the ad slots, but then I lose the responsiveness, and sometimes the ads just don't show up at all or display incorrectly sized. What's even more frustrating is that it seems to be worse with certain ad formats, especially the larger display ads, and on specific mobile viewports where the content area is narrower. It feels like the ad script is injecting its content without reserving adequate space, leading to this jarring reflow. Has anyone else experienced such a severe and persistent Cumulative Layout Shift issue with AdSense lately, especially after a site update? I'm open to any suggestions, no matter how obscure. I'm completely stuck and desperately need some fresh eyes or advice on this. Thanks in advance!