I bet they would have helped though
No, they wouldn't. I've seen so many posts on r/techsupport and r/windows from people complaining about Search or other OS functions not working. They always claimed that they "did nothing", only afterwards it would turn out they used some of that crap software, which broke half the OS.
laptop had a weird antivirus software preinstalled
That could've been the reason for A LOT of problems too.
Let me put it this way: me, my family, and my business all run essentially clean Windows + Defender. Nothing else. And by "clean" I mean: install from ISO, leave as is.
Last time I had a BSOD was three years ago which was around 6 years since the previous one.
Meanwhile, the Tuxedo OS that I'm running right now (and, generally, enjoy very much) just hung up completely when I put it to sleep and then awoke. As in: not even the cursor moved when I moved the mouse, had to hard reset the thing. Things like that just don't happen in the Windows world these days.
That's an average over the 9 hours, so including breaks.