As of October 4, 2021: While MathWorks products may work, Windows 11 hasn't been qualified with MathWorks products. There are known issues with Polyspace, some minor issues with Simulink and MATLAB adjacent products.
Windows 11 have not been officially released yet. We and MathWorks cannot know how the final version will work. There have been compatibility restrictions with any new OS in the past and I speculate that this will not change in the future.
Therefore the standard procedure is:
Do not use a freshly published OS for productive work.
Wait until MathWorks has tested the setup exhaustively and can provide workarounds for problems.