Go easy on the Grandpa
Having started work on an IBM 360/30 in 1969, some of us have actually made Granpa status, still keeping up (to a degree!) on technology and supporting lots of our age group. Windows 10? No problem, fast and easy to use, and despite what's said above none of the people I support have had Edge change the default browser. Lots of folk have an inbuilt dislike about anything Microsoft. I understand the feeling, except with me its anything Apple.