Insert sheet menu pops-up on left click

How can I disable the appearance of an “insert sheet menu” when I left click at the bottom of a sheet ?
I want this menu to open when I click right and then choose insert (which it does), but when I click left, I just want to bring back Calc at the front of my open windows. It makes me loose a lot of time to close the unwanted insert menu at each time.
My LibreOffice version is7.3.7.2 for Ubuntu22.04

Menu>Tools>Protect Spreadsheet Structure

Thank you for this suggestion, but this does not respond fully to my requirement. When I protect the structure, I can no longer right click to open the insert menu (or I would have to unprotect the sheet before). Besides, I would have to protect all the sheets individualy, which is also time consuming. What I really want is a default behaviour of the software that do not associate left click at the bottom with this insert menu.