In return, as a token of my gratitude, I give you a script that allows horizontal scrolling in Excel with Shift + Mousewheel (bafflingly not a default in Excel, even though that's becoming standard almost everywhere else):

  ; Excel horizontal scroll with Shift + Mousewheel 
  #IfWinActive, ahk_exe EXCEL.EXE 
    +WheelUp:: 
      SetScrollLockState, On 
      SendInput {Left} 
      SetScrollLockState, Off 
    Return 
    +WheelDown:: 
      SetScrollLockState, On 
      SendInput {Right} 
      SetScrollLockState, Off 
    Return 
  #if

Sorry I'm on my phone right now so can't test this out so what does this do exactly?

I just have my formula bar set at 3 lines and F2 edits in the formula box always. I find that works well for me.

What frustrations do you have with the default setup?

Also, are you aware of the new Advanced Formula Environment?

https://youtu.be/yIAl1XbuVzU