Pasting that exact text into the URL bar of a new tab on Chrome should take you about halfway down the page and display the following on page load.
At present the link I give in markdown is highjacked such that the
html#:~:text= element becomes URL-safe
html#:%7E:text= (right-click > copy link to see the behaviour). Therefore the auto-scroll and highlight do not occur.
Note that testing the link from the edit->preview pane seems to indicate that the link is well-formed (as seen here); while opening the link from the final rendered page appears malformed (as seen here).