Prohibit user to resize window (in window mode)

Hello community.
I have some problems with porting my solution to Linux.
I want prohibit user to re-size window (in window mode) and hide Maximize button.
For this I set AllowUserResizing = false in Initialize method, but anyway user still can re-size window.

Who of you can help me with my problem?

I already have written the code that fixes that issue and the fullscreen issue for linux. I will submit a pull request once my previous pull request comes threw, but until then you can use these dll files I’ve submitted a pull request and it has been merged, you can get the files by compiling monogame source code from github.