BeBlurt is compatible with both Windows and OSX and tested with browsers Chrome and Chromium-based, Safari, and Opera GX, and it can be used with or without Whalevault (although I personally use it more often without).
However, I haven't had the opportunity to test it on Linux PCs, which account for approximately 3.08% of the worldwide operating system market.
The percentage you allude to I know perhaps better than you @nalexadre, don't worry about it.
And he understands you if you don't want to waste time developing applications for other operating systems.
To each his own. I defend free software as a way to oppose the immense power of media multinationals and software majors.
Regards.