All the things you listed have much better offerings for free. The place I work for is small and we only use the email, teams and the docs. The rest is other software because 365 is terrible at everything.

Example : open an existing doc. Go to "save as". That prompts you for a new file name as expected. Now go to browse so you can select where you want the file to go... Or don't, just click save and it will ask where to put the file. Then you realize your new filename is gone! You gotta type it twice and the first time doesn't matter at all you can call it dick first. That's like kiddy level software development testing that has not been corrected in over 7 years now! Imagine all the wonderful security things we don't see.