> microsoft teams, jira, servicenow, salesforce

Nobody wants to use those products either; they just exist because their default at a certain scale, or they're effectively free because they're included in your existing MS license.

For GIMP the comparison would be either Adobe stuff or what used to be Affinity products. Libreoffice is now competing maybe with MS Word but probably more often Google Docs or Markdown editors.

Old blender used to have a very technical UI; a cacophony of dropdowns and small text that functioned but was quite overwhelming. Meanwhile things like SketchUp became popular because they weren't as powerful necessarily, but were very welcoming, and that's hard to do with a complex offering.