Libreoffice is slightly worse because all the proprietary office suites keep lowering the bar for everyone to follow them. It's not a quality issue, it's a never ending contest to figure out how to complicate writing a simple letter so that everyone has to buy only your software.
LibreOffice is more than slightly worse, but FOSS projects cover the gamut. The thing about them is that the best ones are usually laser focused on exactly what the user needs, rather than what makes the most money.
Calc was actually quite comparable for 90% of Excel features I have ever actually used.
Writer is petty good on its own, but the fact that .docx documents don't quite matchup vs. When making and opening with Word makes it difficult for me to use officially.
Impress is just plain disappointing compared to PowerPoint.
Dont edit in shitty formats, edit native, publish to pdf. Skip the pointless MS Office step. If someone else wants to collaborate, great they can download LibreOffice or alternatives for free. If they expect the docx format ask them to pay for your 12 month subscription or stfu.
Krita isn't that much worse than Photoshop/CSP for digital illustration. That said, going back to CSP after a year was such a relief I didn't know I needed. So many little stumbling blocks removed.
There definitely exist paid players out there (or at least used to...dunno if they still exist), but there are also "free" (as in beer) non-free (as in speech) options, like the ones included out of the box in a Windows or macOS installation.
For LibreOffice, I'd go with, worse and better at the same time.
I have just noticed, overtime, that it has some problems in some cases, where MS Office does better, while there are certain cases where it does better.
There are 2 major pain points though:
Calc UI stutters when using the scrollbar with mouse click and drag.
Adding images to files makes the whole thing way slower than acceptable.
I haven't used it for a few months though, so something might have changed. But the second issue specifically is a long time one.
On the other hand, the formula usages are much better in Calc. Also, the documents don't get wonky between versions as much as MS Office
365 is far worse IMO. New web only apps (replacing all the desktop apps) are a big step backwards. LibreOffice does everything needed natively and a lot more.
See, the problem with that is that that's precisely not how I use Photoshop. I don't use it often (certainly not often enough to actually pay for it), but when I do, I tend to go fairly deep.
I should try out Darktable though. I used to use Aperture until it was discontinued, and these days I frequently use Lightroom, though I don't really love it.