LibreOffice is good alternative if you are not heavily dependant on unique MS Office features, especially Excel.

OnlyOffice is better if you’re looking for MS Office document compability.

Krita is only usable for basic design stuff. (EDIT: DESIGN =/= PAINTING)

It’s mainly alternative to CSP, Medibang, and other painting software.

Definitely not Adobe Photoshop or Affinity Photo alternative.

Unfortunately, none of them are as easy to use and full featured as Affinity softwares.

As much as I love FOSS, Affinity dev did a great job to enhance UX for first-timer, easier than Adobe or FOSS alternative.

Not to mention, so many new feature than any competitor doesn’t have yet.

The closest one in usability and innovation is Inkscape.

GIMP, Scribus, and Krita, are not even close. (Krita is not even direct alternative to them)

I regularly uses Affinity software, Krita, and GIMP.

Affinity software is way better designed and more feature-packed for graphic design. Affinity software avoids a lot of complexity of Adobe and make it easier for newcomer.

GIMP is not even close.

Krita on other hand is only suitable for basic image editing, not full-blown design software. It’s created for drawing-related stuff after all… You only can recommend Krita for people that looking for Clip Studio Paint, Medibang, or ibis Paint alternative.