I have an L390 Yoga (i7) and these feet are indeed way too large.
The device is painful to use even with the correct feet, though - at least if you’re using Windows. It’s constantly overheating, because the cooling system is just reused from the L380 and can’t handle the heat of my i7 8565U processor. But hey - at least the marketing people were able to put “4.6GHz” into the specs.
I have to undervolt the CPU to make it run cool and prevent thermal throttling, which is not possible anymore if you’re running a current Windows version.
That thing is probably the last Thinkpad I’ve ever bought, to be honest.
Also, if you’re wondering what that port with network symbol is, it appears to be a proprietary connector used on ThinkPads requiring an “Ethernet Extension” adapter to be usable.
Yup, the port is called “MicroLAN” and the adapter was 30-50€ back when the device was new. It’s of poor quality (the rubber of the cable on mine is turning into a sticky mess) and entirely passive.
Lenovo must’ve looked at Apple’s accessory profits and thought they wanted to make money off of crap, too.