Stealth and invisibility were not precisely Immortal Huanglong's strong suits.
As a dignified member of the Twelve Golden Immortals, ranking third in seniority, the son of the Ancestral Dragon, and a disciple of Yuanshi, his status, reputation, and prestige meant he had no need for skulking in the shadows.
When encountering injustice on the road, Immortal Huanglong would customarily say, "Please show some respect for the Chan Teaching."
Facing strong enemies, he would simply shout, "My master Yuanshi Tianzun!"
But times had changed.
Firstly, he had in his sleeve the would-be Heavenly Emperor, recognized by the Chan Teaching, protected by the Jie Sect, supported by the Human Race; he couldn't let anything go wrong.
Secondly... by associating with the Heavenly Emperor, one had to abide by the rules and obey the Heavenly Emperor's commands, not flaunt one's prowess arrogantly.