I use LibreOffice! Calc, Draw, and Writer are very user friendly once you get used to where the tools are. Impress is a pretty good replacement for Powerpoint: the stock graphics leave a lot to be desired–but that’s a simple fix with a good stock image service. About the only thing LO doesn’t do is notes, but I’d check out Xournal++ if you were looking for a way to replace OneNote. Plus, LibreOffice doesn’t push OneDrive down your throat. It’s been a win-win for me.
Another thing to consider if you really like typesetting is to learn LaTeX: it’s a slightly steep learning curve(especially for advanced topics), but it’ll do things that your typical WYSIWYG word-processing suite couldn’t dream of doing. Plus there are a lot of templates available that you can adapt for your purposes.
Destiny 2 as a F2P user has been surprisingly fun. Yeah, there are paywalls, but there’s at-least 60-80 hours that you can play for free with how well the game is designed. Great group PvP and PvE challenges, public group PvE challenges, and over-all gorgeous modeling. Plus the combat mechanics aren’t insanely hard to learn, but they can still provide a great challenge. I had my doubts because I’ve heard it was a microtransaction nightmare, but turns out it’s not a pay-to-play scheme like Genshin. I might even buy the expansions and unlock the rest of the game.