This makes me want to try LibreOffice again. Is it really close-enough to on-par? I tried OpenOffice and LibreOffice a few times through the years and always found weird hiccups, like filetype issues, files looking different between programs, weird UI choices, etc... I would love to have a legitimate replacement option.
No issues here. Have to use (mainly) excel at work, but use libre office calc at home, for years. Hate excel with all my heart. Mainly autocomplete and UI issues, but also issues when using more than one instance with excel. No problems with file exchange, p.e. with my tax person. Imho excel was THE leader but they enshittyfied it to the max.