All Microsoft software is brittle. I use Windows 11 and 365 for work. Sometimes the ribbon just stops drawing correctly, especially in Excel but also sometimes in Word. If you lose network connection while editing files on a share for more than a moment (I presume the usual timeout value) then all the Office applications get bitchy about it. Word forces you to save to a new filename. Excel makes you confirm you want to overwrite. Teams blows up regularly and is slow at best. They did a tolerably good job with the chat part, but everything else is fragile.
As far as what's best to use, I find LO Writer to be approximately as bad as modern Word. Neither one is particularly friendly. Peak Word was 5.1 for Macintosh, which didn't try to be a full-fledged DTP suite. It was just a nice word processor that ran on almost no machine. It's all downhill from there.
What Microsoft really needs to do is start over from scratch with some of their products. They can afford to do it. They have the negative examples to learn from.