I'd made the title block 1:1 scale and create a block out of it to reuse it with import or library browser.
I also like to make drawings 1:1, that eliminates 100% errors on scaling real life measurings to drawing units.
Then on insert, the block can be scaled and rotated as needed for the drawing.
For printing the title block is revese scaled with the drawing to fit on the paper.
There should already be some 1:1 title blocks available in the library browser. If they are missing, they are on GitHub:
https://github.com/LibreCAD/LibreCAD/tree/master/librecad/support/library/sheetsI think there are also some shared here or in the wiki, I have just not the time yet to search for them.
investing less than half an hour into Search function can save hours or days of waiting for a solution