I went there, but no luck :
https://wiki.lazarus.freepascal.org/BGRA_Installation_on_LinuxOf course I did a lot of googling before going here.
I have no components showing up in the upper bar.
I was successfull on a raspberry Pi 3 because someone did a step by step installation explained in a web tutorial page.
I'm talking about lazarus 1.8.2, I can see that the folder /usr/lib/lazarus/1.8.2/component is there with 6990 items and 196 Mb of files.
[-Edit-]
I works
based on comments above, and I would like to thank the nice contributors of this thread.
I manually download the 3 .deb packages
Remove and clean previous version installed with a simple sudo apt-get install fpc and lazarus
Installed the 3 packages with GDebi
Important :
Deleted the whole
/home/[Login name]/.lazarus/ folder and subfolders.
Thanks