"in-depth insight" is a correct and usable phrase in written English. You can use it to describe a piece of writing or conversation which has been carefully researched and considered. For example, "The author's in-depth insight into the history of France gave readers a new understanding of the country.".
These experimental findings have provided in-depth insight into the changes to CPB strength.
Thus, lmms have helped to gain an in-depth insight into regulatory mechanisms of PCD and defense responses in plants.
It can provide in-depth insight and guidance for optimizing the design and operation of both pantograph and catenary.
The main purpose of the interview was to obtain in-depth insight into the training needs of Turkish transplant experts.
The study provides an in-depth insight of the process and presents an analysis of operating conditions suitable for AAVs.
Supplementary support is given by computational approach to gain in-depth insight into the adsorption states and electron contributions.
Among the prominent equations used for gaining in-depth insight of fluid turbulence is the two-dimensional Burgers equations.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.
Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com