Just found a nice USB-C Display Port adapter cable. Should be great to use the for presentations while travelling.

It's just a cable with an USB-C plug connecting to the L5 and an Display Port plug on the other side.

The Display Port plug on its side has an usb-c socket to connect a PD power converter.

-cables" rel="nofollow">https://source.puri.sm/Librem5/community-wiki/-/wikis/Tested-Accessories-cables