At work I dutifully install all "important" updates and any others which sound as if they might be good. Sometimes it's quick, sometimes very, very slow.
At home I haven't installed updates for years ( XP.)
I have no more problems at home than at work.
MS sell most to business and and have to try to cover themselves against the accusation that they have neglected even the remotest possibilities of hacking.
If my software seems to work, then I see no reason to fix it. As for hacking, I can't believe anyone would think it worth hacking my home PC, even if I published my logon & password to the world!