Not long ago and Of late

Of late and not long ago are semantically related in new topic. In some cases you can use "Of late" instead an adverb phrase "Not long ago", when it comes to topics like late, currently.

Of late adverb - In the recent past.

Not long ago and of late are semantically related in new topic. You can use "Not long ago" instead an adverb phrase "Of late", if it concerns topics such as late, recently, newly, currently.