If you wish to disable double-tap-zoom on Microsoft Edge instead, please download the "Tampermonkey" MS Edge extension from the MS store and add this userscript:
window.document.body.style.touchAction = "manipulation";
(
https://1drv.ms/u/s!Ao_bx9imD7B8gdtNMFNtVAouwSk06w)
It uses the "touchAction" CSS attribute on the body element of every website to disable the MS feature. When added, double click on the userscript in the Tampermonkey script pane, go to settings and add an user include: *
Using the * wildcard the script will launch for every website on-load. Hope this helps!