What triggered the current wave of Palestinian terrorism in Israel?

Israel is currently experiencing a wave of Palestinian/Islamic terror which it had not seen "in many years" - with three shooting attacks and one stabbing attack in less than 2 weeks.
(search Google for "recent terror attacks in Israel", for countless references on this factor).

(Apr/10/22 Update: Joseph's Tomb in Nablus burnt and near-demolished, 1 stabbing attack at the Cave of the Patriarchs in Hebron.)

What could have triggered it?
Please note that the Month of Ramadan cannot be the full answer, since it comes about, every year.

Let me give a few examples of triggers to previous terror waves;

1. 1987, First Intifada: An Israeli trucker killed several Gazans by accident.
2. 2000, 2nd Intifada: Israeli PM Ariel Sharon visited the Temple Mount.
3. 2015, The 2015-2016 Wave of Violence ("Knife Intifada"): Widespread propaganda by the PA that Israel wants to change the "Status Quo" at the Temple Mount.

(refrences are endless, just a quick search on Google).