I had to look it up, but the firts L5 was shipped in March (8th), 2022
A second L5 was received in November (22), 2022.
Both L5’s got standard earbuds without volume control and/or mic.
A picture is worth a thousand words but in the absence of that, the difference should be: The connector would be TRS (three segments in plug) c.f. TRRS (four segments in plug, 4 conductors) - the extra conductor being for the microphone’s signal.
Regular earbuds will likely also not have a volume control at all.
My buttons on the Librem 5 earbuds don’t work on my desktop.
AIUI, support for volume control on such an audio connector is
a) an ungodly hack, and
b) requires support in the hardware, and
c) requires the support in the hardware to be compatible with the support in the headset (there are multiple standards - gotta love that), and
d) of course requires support in the software to respond to volume change events from the hardware.
I’m deeply ashamed of myself. I was totally wrong about the received earbuds.
I wanted to make a picture of the received earbuds and examined the earbuds more carefully.
What is the case: Those earbuds aren’t the one I actually received. Those earbuds appear to be of another, old cellphone I once owned.
I obviously have placed them in the box of the L5.
What’s more is that the L5 earbuds where also in that same box, underneath the lower white plastic sheet. Now I feel truly stupid.