Futur II and Plusquamperfect are dependent tenses. You only can use them if you have two events, and the places, where these tenses feel home and comfort are subordinate clauses:
Wenn du heute Abend heimkommst, werde ich bereits eingeschlafen sein.
When you come home tonight, I will have already fallen asleep.
Wenn du heute Abend heimkommst
This is the ...
Imagine your colleague expecting you todo something for him once you arrive at work, but you haven't arrived yet. So when he calls you on your phone and complains, you can use Futur 2 to explain that you haven't done it yet, because you will only arrive later today.
Him: Warum hast du das noch nicht gemacht?
You: Ich werde erst in 2 Stunden angekommen sein. ...
Does "wird geliefert" have 2 meanings: future simple and present continuous passive voice?
Definitely, this sentence is the "Präsens" tense here and not the "Futur".
However, as amadeusamadeus already wrote, the "Präsens" tense in German language is not equivalent to the present tense in English:
In many regions of ...
Deine Bestellung von PIZZA_COMPANY wird ungefähr um 11:30 geliefert.
which is basically
Die Bestellung wird geliefert.
is passive and specifically Vorgangspassiv which can be translated to English as a continuous form, see English analogues of Vorgangspassiv and Zustandspassiv
Independent from passive or active voice, in German language, ...
Grammatically, the German sentence is unambiguously present passive. So the literal meaning is:
Your order from PIZZA_COMPANY is being delivered at about 11:30.
That's because in German, the present tense is used for talking about the near future or relatively sure events in the future.
The (explicit) Futur I/simple future passive version of the German ...