This is the 8868th most frequent Russian word.
привычными
"Habitual" or "familiar."
In this sentence, 'привычным' is used as a plural adjective describing the character of 'делам' (tasks), indicating that the tasks are familiar or habitual.
Мы возвращаемся к привычным делам после отпуска.
We are returning to our usual tasks after the vacation.
Here, 'привычном' is a singular adjective referring to 'окружении' (surroundings), expressing that the surroundings are recognized and customary.
Она наслаждалась моментом в привычном окружении.
She was enjoying the moment in familiar surroundings.
In this context, 'привычным' modifies 'темпом' (pace), showing that the pace is typical for the individual.