Taken 1080Ti Strix coolers off multiple times. Sounds like you're doing it wrong, or talking vicariously through others about older products.
Take it you never read through the vega strix thread?
https://forums.overclockers.co.uk/t...-vega-64-under-450-interested.18830240/page-5
https://imgur.com/gallery/GZJnFY2
A diy job to get good temps.