I cannot verify a signed PDF in any version of edge on linux

I can do it on windows, but on linux, the option to enable signature verification in a PDF is not at all listed on the flags page. Both for available and unavailable nothing is listed. There is nothing in options to enable it and nothing in a web search suggests or confirms that it was removed or disable in the linux version. Please help me, because I require this feature to use edge chromium on linux.