For people with more technical background, who are enthusiasts about computers and software - sure. For a lot of casual users who need things to 'just work' the way they always have, asking them to swap to an entirely new OS is nonsense.
I'm considering it myself but even with years of experience on Linux I'm still cautious because of a lot of edge cases where something I use now wouldn't work or wouldn't work well in Linux.
https://en.wikipedia.org/wiki/XY_problem
This is not about "X sucks", but the very first questions from an engineering perspective should be whY? What do you want to accomplish? Is X actually a good approach towards Y?
If it turns out that trying to shoehorn X into kinda accomplishing Y is very hard work, then suggesting to use X2 instead is a perfectly sensible suggestion.
If you have a hard constraint that you must use X, even if it does not fit well to Y, fair enough. Then you add that as a reply or state it in the beginning.
By the way, that 95% is lower actually. If you count ProtonDB's Plat + Gold for the top 1000 played games on Steam, it's 81%. For plat+gold+silver, it's 89%.