There is no doubt that Allāh has completed our Dīn for us, completed His favours upon us, and sent us a Messenger ﷺ who was extremely merciful towards his people.
The Companions of the Prophet ﷺ and early Muslims aimed to achieve Jannah as their ultimate goal. The worry they had and the effort they made were to attain paradise.
One of the primary reasons for Allāh sending Prophets was to establish His religion, promote harmony and unity, and eradicate divisions and differences.