I have a simple bookmarklet does does something similar:

    javascript:(function(){document.querySelectorAll("video").forEach(((e,o)=>{console.log(`VideoFixer: Processing <video> #${o+1}:`,e),e.style.position="relative",e.style.zIndex="999999",e.controls=!0,e.style.pointerEvents="auto";const t=[],i=[];["disablePictureInPicture","disableRemotePlayback"].forEach((o=>{e.hasAttribute(o)&&(t.push(o),e.removeAttribute(o))})),e.hasAttribute("controlsList")&&(i.push(...e.getAttribute("controlsList").split(/\\s+/)),e.removeAttribute("controlsList")),t.length&&console.log(`VideoFixer: Removed attributes: ${t.join(", ")}`),i.length&&console.log(`VideoFixer: Removed controlsList restrictions: ${i.join(", ")}`),t.length||i.length||console.log("VideoFixer: No restrictions found to remove.")})),console.log("VideoFixer: All videos processed.");}());

It just re-enables all controls on all <video> elements and uses z-indexing to push them to the top. Works on instagram but needs to be re-ran for new video elements.