The only program that is a direct replacement for program X is program X. If you want to recommend program Y, you need to first understand the subset of the features of X that people use and what they use them for. Can Y do those things?

Almost all uses I see in companies for MS Office or Google Docs involve some kind of collaborative editing. Whether this is someone sharing a document for feedback or people writing different parts together, or something in the middle, it’s a core part of the functionality. This is often done with track changes, for inline revision control. Oh, and access control to the shared versions is often a critical compliance requirement while doing this.

Does your recommended replacement support that model? If not, you can’t use it in a lot of professional settings.

For someone writing the occasional personal document, this maybe doesn’t matter. It’s been so long since I used a word processor or spreadsheet for anything except work stuff I am not sure (Python + Pandas is a better solution than Excel or Calc and LaTeX or Markdown a better solution than Word or Writer for any non-work stuff I do).