6 Ways to Transform
A) Simply click on ypur selection and DRAG to scale PROPORTIONALLY scale up or down. To strech you will need to hold down the SHIFT key. (This is new in 2019 and 2020)B) Edit > FREE TRANSFORM ≈ ⌘ T. This will give you the main 6 point TRANSFORM Frame. From here right click or hit the CONTROL key and you will get THIS fly out window.
C) When your selection is active you can also warp from any point in that frame.
D) The PUPPET WRAP - To become active you need to select the entire LAYER. So whatever you want warpped should be completely silhouetted BEFORE you warp. (This is actuaally good when we want to create an animate gif)
A big favorite under FILTER is LIQUIFY. As a rule I like to keep my brush pretty big. Where you push or pull yourr pixeles will be LESS noticable. And we all had a great time with the new FACE filter in LIQUIFY. Check this Before and After.
Masking type with an Image