It's a feature that appears in Affinity Designer. When I first use the tool, it was really confusing, but I got used to it by the time. I agree it is a good feature to speed up workflow but I consider the old method better suited for flexibility. Depends on the results but I hope Adobe will bring it back.

It is multi-platform

Hello,

I've been using Affinity products over a year now and I am totally satisfied except the warping tool (which I found a manual subsitute in Designer). It is far better than Ps for UI design and have been optimized to be used that way (to be honest, Ps is really not for UI, even with XD, you will run with compatibilty issue with other softwares and Adobe is well known for their non-friendly interface). I usually use Designer for UI and pair it with Marvel or Overflow. I still use sketch for their large plugin ressources and file size but I considered switching to Studio for the overall aspect of a project and Designer for the depth. If you or your company are not involved in graphic design, it's a big deal to drop Adobe suite.