Could Italy repeat her OTL play for Corfu perhaps ?
It sounds like the kind of thing they would do (are doing) ITTL. The 1910s and 1920s are the era of the last big land grabs, after all. I haven't thought through whether that is exactly what they will do, but it's the style. "Everyone" (Italy, Greece, France, Spain, Bulgaria) is doing it.
So are the ottomans supporting muslim Albanians against the Italians? And when ottomans get oil money will they try and get revenge against France and Italy funding movements in North africa etc.
Ottoman support for the Albanian guerilla is phrased in religious terms, but the Albanian leadership formulates their position as an etnic nation state. Really, it's an opportunity to deny an arrogant robbing state its ghains at least, and albania, while not interested in joining the Ottoman Empire, remains on good terms with the Ottomans.
And support for independence movements absolutely. The Ottomans and the Chinese are the biggest supporters of decolonisation. Part of the playbook of international fuckery in this world is that supporting political moivements in the other country is not a casus belli. Aside from cash and clandestine arms shipment, the biggest thing the Empire gives the rebels is legitimacy. The French would love to say that the Mouvement Algerien de Liberation is just a criminal gang, but when they have offices in Istanbul and regularly attend ambassadorial meetings as 'recognised observers', that becomes much less convincing.
Is Albania stable in practice or essentially a weird European Afghanistan-tribal vibed place?
I don't really know all that much about the details of Albania, but I assume that it's "both". The country has to be stable enough to function economically and integrate itself into an informal alliance with Austria-Hungary and the Ottomans, but it's a young nation state in an area where people don't fully recognise 'nation' as a category. Up in the remoter valleys, things can get plenty picturesque. Eventually, there will be national integration and modernisation because the government owes the mountain clans (they provided the resistance and continue to send their sons to the army). That means roads, schools, and health services as well as bribes and sinecures to the local chiefs. But it will take a while. Albania is not exactly flush with cash