www.visidata.org is way, way, way, way better than excel and it’s FOSS.

As for the rest:

• I don’t really miss Word because WYSIWYG editing is just kinda bad across the board. Much better to write with markup rather than fighting an auto-formatter all the time.
• I thankfully have not needed to make much of any PowerPoints, but I think I would probably feel similarly about them and want them in some kind of markup language as well.
• Teams just sucks ass compared to many other alternatives, though I’m admittedly not familiar with good FOSS ones
• Outlook is basically just a dinosaur and there’s a million ways to do email better. Frankly, FOSS has it beat by a huge margin

The rest of Office isn’t really even worth talking about tbh.