Open file in the default application WinForms (.NET Core)

Question

I decided to migrate one of the old application to a Windows Forms App (.NET Core).

Previously (in the Windows Forms App (.NET Framework)) I was able to use the following code to open a file:

System.Diagnostics.Process.Start(filePath);

But migrated application (targeting netcoreapp3.1) throws exception:

System.ComponentModel.Win32Exception: 'The specified executable is not a valid application for this OS platform.'

I plan to use the application on Windows stations.

How can I make this work? Maybe there is a replacement for this code?