Custom Views are compatible with MSFS 2024!
It can be done for all aircraft.
Find this path in MSFS 2020
C:\Users\YourUser\AppData\Local\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe\SystemAppData\wgs\000901F3B8C2046D_0000000000000000000000069F80140
Here you will see folders with many numbers.
You have to open one by one and locate the keyboard.
In my case.
EDEF1C32C71B44D2BC116E51C71086A5
And inside, verify with the notepad that it is the keyboard profile.
In my case
BEEC77715BAC4CC0BA068CDE5C00BF44
Now copy the keyboard profile folder.
In my case.
EDEF1C32C71B44D2BC116E51C71086A5
and paste it into this MSFS 2024 path
C:\Users\YourUser\AppData\Local\Packages\Microsoft.Limitless_8wekyb3d8bbwe\SystemAppData\wgs
Now run your MSFS 2024 and in keyboard controls in general and for aircraft change to MSFS 2020 keyboard