I’m not sure how long ago “not that long ago” is for you - I just had a look through the history of KDE and, based on my familiarity with the various screen images posted there, I think is about 20 years since I last tried it :-)
I’ll have a look at cinnamon and cosmic - thanks.
It’s a little different, but works. I was in business operations for the last 20 years and relatively proficient with Excel. I’m retired now but I’m treasurer for a small community non profit organization. I recently switched to Linux desktop and found Calc handled my sheets with pivots etc. just fine. About the only thing I’m missing is End-Arrow to move to the last populated cell in a row or column, but not missing it so much that I’ve tried to figure out how to do it in Calc - yet.