Since upgrading to Sketchup 2021, I see my file sizes are 20 times larger. Even if I delete everything including hidden geometry and save the file the file size remains the same.
My fix was to select everything, cut it, open a new file, paste it and then resave. File size back down to normal
File size 18,180KB
File size after cutting and pasting the identical elements
Is this a bug or a I missing a setting in the upgrade?