LibreOffice has been working "fine" for my DeGoogled personal life.
Work is heavily Googled still (and not entirely up to me), but I've practiced a hard barrier between work tech and personal tech for years now. In case I can sway any colleagues: Anybody feeling like any of these alternatives would be ready for a small or larger team to jump over to that routinely collaborates on spreadsheets, documents and slides?
Kagi was appealing to me as well, especially the quality of their results. However the requirement for a user profile (allowing them to build a profile based on your searches) and their involvement with AI soured me.
Would possibly pay for a search engine if it could somehow avoid the above pitfalls.