.....Personally, I tend to assume that the differences are of little external significance .......
Peace be on you.
No:
For example:
There was lot of widely spread misunderstanding of understanding of Jihad in Muslims.
It was the first voice of Founder of Ahmadiyya Muslim Community
[The Promised Messiah, Mahdi , on whom be peace], who explained from original Islamic teaching what is actual Jihad.
He wrote:
"Glory be to God! How truly inspired by the spirit of the Prophets and the righteous were those who behaved like humble, weak babies when commanded in Mecca not to resist evil even if they were cut to pieces, acting as if their hands and arms possessed no strength. Some of them were killed in the following manner: two camels were made to stand close to each other, while each of the victim’s legs were tied to the camels. Then, the camels were made to run in opposite directions. The victims were immediately torn apart just as a carrot or radish is split open. Unfortunately, the Muslims—and the maulavis in particular—ignore all these events and think of the whole world as their prey. Many maulavis are just like a hunter who moves stealthily towards a deer he is stalking in the forest, shooting his gun at precisely the right moment. They know nothing about compassion for humanity. According to them, it is an act of Islamic virtue to fire a pistol or gun at an innocent person. Where are those who will act like the Companions ra of the Holy Prophet (may peace and blessings of Allah be upon him) and remain patient while suffering torture? Has God commanded us to capture complete strangers and cut them to pieces or to shoot them without reason or proof of an offence? Can a religion be from God if it teaches that you can enter Paradise by killing His blameless and innocent creatures—to whom you have not even delivered the message? Is it not shameful that a complete stranger should be unjustly killed while occupied in his daily affairs, thus widowing his wife, making his children orphans, and turning his house into a funeral parlour? Which hadith or verse of the Holy Qur’an authorizes such behaviour? Is there any maulavi who can respond? Foolish people hear the word jihad, and make it an excuse for the fulfilment of their own selfish desires. (Government Angreizi aur jihad, p. 12–13)"
Page 10+ @
https://www.alislam.org/library/books/TrueIslamicConceptofJihad.pdf
It is just recent years that his understanding of Jihad is being accepted as right version.
Collection of resources about True Jihad:
https://www.alislam.org/jihad/
There are indirect ways to see this matter of external importance. Why people are talking so much against Islam, even some of them think they will get support in politics if they speak against Islam........The simple answer resides in all what is said in above lines.
Thus teaching the correct Islam is the main difference between Ahmadiyya-Muslims and others.
The Founder of Islam Holy Prophet Muhammad (pbuh) was shown what horrible his people would be doing in latter days, and he foretold the solution based on divine knowledge:
The Sahabi / Companion Abu Hurairah (r.a.) said:
One day we were sitting with Holy Prophet when Surah Jumua [Quran chapter 62] was revealed. I enquired from the Holy Prophet, Who are the people to whom the words, "And among others who have not yet joined them" Salman, the Persian was sitting among us. Upon my
repeated asking him the same question the Holy Prophet put his hand on Salman and said;
If faith were to go up to the Pleiades, a man from these would surely find it.
[Ref: Book of Hadith, Bukhari]
This is the Promised man who has come as Imam Mahdi and Promised Messiah (on whom be peace).
Faith going to Pleiades....These above words are like putting ocean in a pouch. They tell you all about latter days' weakness of Muslim at large.
In short, there are internal and external significance. That is why you will not find any Call comparable to this elsewhere:
https://www.alislam.org/library/books/World-Crisis-and-Pathway-to-Peace.pdf