From this verse, we know that there will be a day in which there will be a gathering for everyone. And from the Arabic word (all together), it means that this gathering will be for every single person, without exceptions.

(  ثُمَّ نَقُولُ لِلَّذِينَ أَشْرَكُوا أَيْنَ شُرَكَاؤُكُمُ الَّذِينَ كُنتُمْ تَزْعُمُونَ… ) (…then We will say to those who associated others with Allah, “Where are your ‘partners’ that you used to claim [with Him]?”): Meaning, since you used to associate others in worship besides Allah (swt), where are these partners? They should stand and defend you, or at least bear the weight of your associating them with Allah (swt).