Sure, but he doesn't want to pay and doesn't want some other app. So just accepts it.
I mean, if I gave you a script that would patch up Solitaire executable to remove any and all ads and telemetry with a single click, wouldn't your dad want it if you offered?
It is as content as they'll get unless they spend $$ to remove the ads. Clearly it isn't worth the upgrade so they must be okay with their decision.
Hell if push came to shove you could probably get GNOME's solitaire running which at least has the advantage of supporting something like 100 different solitaire games.
Lastly I was curious how much the Microsoft solitaire costs and OMG. They want you to pay an ongoing subscription for it. Wow.