Answered by Shaykh Yusuf Weltch
What is the ruling of walking in front of someone who is praying while sticking out of the row?
In the Name of Allah, the Most Merciful and Compassionate.
If one is praying in congregation, regardless of whether the follower is sticking out of the row, there is no sin in crossing in front of them. Only the Imam is considered with regards to the rules of passing in front of someone in prayer. [Tahawi/Shurunbulali, Hashiyat Maraqi al-Falah]
For more details on this issue, see: When Is It Sinful to Walk in Front of Someone Who Is Praying?
Hope this helps
Allah knows best
[Shaykh] Yusuf Weltch
Checked and Approved by Shaykh Faraz Rabbani