Ya I want thru a few Udemy courses to learn about them since I have been out of full web dev for awhile and I agree you need a different skill set but ServiceNow could have made things easier to deal with.  They also did a 180 as far as I'm concerned with having everything you need in the platform.  Now you have to have several external tools and and the code is not stored in the instance so you have more risk of loss.