My contribution, for what it's worth:
As a collector of Lebanon, I wondered whether I had stumbled across an anomaly to the generally understood policy that all* countries are required to identify their stamps by country name.
*with exception of GB.

Stamp issued on 25th November 2020 (Michel) to mark the Arab Economic & Social Development Summit held in Beirut, Lebanon.
This stamp is recorded as LB037.20 in the WADP Numbering System (WNS) suggesting that it has been submitted to the UPU as an official issue of Lebanon.
The UPU Convention Article 6 states:
"
Postage stamps comprise:
3.1 the name of the member country or territory of issue, in roman letters, or, if the UPU International
Bureau is so requested by the member country or territory of issue, the abbreviation or
initials officially representing the member country or territory of issue, in accordance with
the conditions laid down in the Regulations" (a superscript 1 refers to exception for GB as referred to in an earlier post).
The name of the issuing country is not shown anywhere on the stamp, the only reference to the issuing agency being the Lebanese flag (cedar tree) shown in the scrolling ribbon of the design.
(The text in Arabic along the lower edge of the stamp expresses the date in Gregorian and Hijri (Arab Islamic) calendar, no reference to Lebanon).
This cedar tree symbol could be taken to refer to the location of the summit and not necessarily the issuing country.
To my knowledge this is the only Lebanon stamp I have come across which does not bear the name "Liban" (Lebanon in French), with/without the Arabic equivalent.
Those who collect stamps of the Kingdom of Saudi Arabia will be aware that its stamps bear the symbol of crossed swords below a palm tree, instead of the country name.
If the cedar tree or flag bearing same is to be taken as representing Lebanon, then why not adopt this as a rule for all issues?
For example, the preceding issue, has the country name (Roman and Arabic characters):

Likewise the subsequent issues:


The only conclusion I can draw? Never assume!