I think LibreOffice is a pretty good program, but the support is no better than the manual of commercial products. They cover various functionality in a minimal way, often not explaining much at all.
Example, I'm adding dimension lines to a drawing and I can't get it to put the dimension on the left side of the line. I can flip it, rotate it, muck with it every way I can think of and the dimension value remains on the right side of the dimension lines.
Any idea how to fix this? It's not an easy thing to search on. Nearly everything that shows up is not relevant.