I didn't do anything to add any of those to the PDF Open With list - Chrome, IV, Edge, XChange and Word did it all by themselves, and prior to installing the Quaintarse version, Firefox did too.
I haven't run an external PDF reader in Firefox for years - when I want to use a fancier viewer I hit the download button in the built in viewer and then open it in PDF XChange, or in Word if i want to edit content beyond annotations, or convert to EPUB.
I've never liked Sumatra - except for its EPUB IFilter dll, which is a boon that they don't seem to want people to use.
I suspect my Office 2016/Windows 10 window size problems maybe related to the Office add-ins I use - but I couldn't live without tabbed documents, Epub Tools dialogue checker, data visualisation etc etc.
Graphics :
Dell S2417DG (2560x1440@59Hz)
2047MB NVIDIA GeForce GTX 1060 6GB (Dell)
ForceWare version: 391.25
BR