What I did:
I used chrome in an andriod device with 5 inch 720p display to view any pages in news section of plone.org
for instance
What I expected to see
The heading line in the news section has to come in next line, if it exceeds to fit in single line, in the described display screen. Though it's working fine for any display screen above this.
This bug is not of high priority. I've spotted it on 5 inch 720p display. Developers rarely uses their phone for finding things when they have their big screen in front of them.
So if we really want to fix this, we can do it two ways
fix the headings issue and make it appear in next line. But this process is still not effective as left over UI of the page is still not very attractive in same screen size ( images are still not responsive, image appears way bigger)
I expect you'd have to convince a few others before we'd add that to Plone.org. Not saying it shouldn't happen but the more things we add to that site the more of a burden it becomes to maintain and upgrade.
You filed the issue so at some point the plone.org team will convene and discuss. But you do see that to fix a CSS issue adding and relying on an AMP add-on is a bit of overkill?