Hey there, currently, there is no feature available to automatically resize all columns in the spreadsheet application by double-clicking the edge of the column header, as you might find in other applications like Google Sheets.
We're going to pass this over to our product team so they can better evaluate things and see if/where this might fit into the roadmap as a future improvement.
If there's anything else I can assist you with, please let me know! ๐
Have a great Tuesday,
Daniel