I am not claiming things are worse in general but this is one functionality I care the most, which is being able to drag things in 3d space with left click (continuous grab).
I am wondering though, do you use continuos grab at all? This functionality is perfect for tablet users when it works for left click because the left click is putting the pen tip down with a graphics tablet, therefor click and drag works perfectly when used with a tablet. This particular feature probably saved me millions of clicks and presses over 15 years in Blender. That is significant.
RCS as you guys call it, is not a replacement for LCS for a tablet user. With a tablet I need to press an extra button to do the (RCS) right click-drag vs left click drag which is by nature part of dragging your pen on the tablet’s surface.
Imagine this please, you have a pencil in your hand, and that pencil can only make a mark on the paper only if you press and hold a special location on the pencil with your holding hand so you can write a love letter to your loved one. It will be a crummy love letter. Not comfy.
If you only use a mouse, sure it looks like left or right click no biggie. With a tablet it makes a big difference because now an extra finger needs to be involved to get a functionality that has been working perfectly for so many years with left click.
Bear in mind that, bone posing with left click is also broken now.
Anyway, if any one here feeling passionate about this issue, please head over to the developer.blender and add new bugs about these or show support for the existing ones like the one I opened.