For an office suite LibreOffice is fine, although compatibility with MS Office is still spotty. But for graphics there really aren't drop in replacements for Adobe apps right now.
At the end of the day, I don't really care what tools software is made with. Either it works well or it doesn't. You can make quality projects using LLMs and you can make really shitty software without them. The deciding factor in both cases is skill ans knowledge of the developer building the app.