I am glad you asked. Does this mean PGM is willing to spend time/money on User experience/workflow?
I will start with a bulletized list. (mockup examples picture available if you have questions)
This is the number one thing PGM could do to win new customers.

General foundation:
  • Dark mode (BB is killing my eyes)
  • Design around core functions (Chords View, Track View, MIDI View, Score View, Library (Browser)
  • Graphics that look sharp on resolutions of HD to 2k (graphics are too low resolution and are fuzzy on High DPI systems)
  • Support High DPI scaling mode)
  • User experience where they only have what they use, and when they need it on the screen.
  • 100% consistency of all mouse and global attributes


Panels: (open from sides, top or bottom that update data associate with the main window in real time, no OK buttons needed)
  • Panels for most current floating windows and most drill down context dialogs accessible via chord view context menus.
  • Combine mixer and track view panels into one comprehensive arranger view that allows editing and mixing from one view.
  • Panels can dock or floated (on any screen) and are resizable.

Consistent key modifier behaviors:
  • Identical, hotkeys for pan, zoom and scroll across all views.
  • User definable hotkey

Context Menus:
  • The only options are what can you do with where your cursor was when the context menu was opened.
  • Context Menu are in workflow first order (from here you want to do A, B or C 80% of the time) universal copy paste action at bottom.
  • Smart Context menu that have a recently selected order
  • All Editing context menus, (currently available in the Audio Edit view), available for each track in the Track view.
  • Context menu rules:
    -- What actions can I take with the object my cursor is on?
    -- What can I drill down on?
    -- All else goes away (because it is not In Context)

Toolbars:
  • Toolbar 100% user definable so that it only has the buttons for the things I use.
  • No redundant radio buttons

Drag and Drop:
  • Drag multiple tracks to DAW
  • Drag Track order

Transport:
  • Move Transport to the bottom to give more room for a rewind to start and overview navigator
  • Buttons that visually show the state as in engage or not
  • Rewind to Start Button-
  • Now time (current bar/beat)
  • Loop associated with timeline toggle on and off for all views.

Timeline:
  • Consistent across all views
  • Has Chords on timeline that can be editable inline.
  • Global Snap that toggle on or off (snap resolution options)

Cursor:
  • Consistent across all views
  • Supports:
    -- Starts from where it is at (exact time)
    -- Starts from where it is at (first of Bar)
    -- Starts from start marker

Looping:
  • A highlighted region in timeline consistent across all views
  • Global across all views
  • Start and End are global
  • Toggle on and off

Tracks (Track view+ Mixer):
  • Only show tracks that have data.
  • Context menu to add a tracks type
    -- RT
    -- RD
    -- MST
    -- MIDI
    -- User
    -- Audio


Source: 90% from public workflow video posted over a year ago and private suggestions to PGM.
Workflow video (focus on consistency and global behaviors that go with changes to UI)
WELL WORTH WATCH FOR THOSE WHO ARE INTERESTED IN THE TOPIC OF USER EXPERINCE.
https://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=792013#Post792013

Studio One (latest version), Win 11 23H2 , i9 -10940X 3.3 GHz, 32GB Mem, a 4K 40" monitor, PreSonus Studio Live III Console as interface/controller. secondarily test on Reaper, Cakewalk, and S1 on Surface Pro 3 Win 10 (latest versions).