Comment by Grom_PE

I was worried about .NET sending telemetry once I found about the existence of the DOTNET_CLI_TELEMETRY_OPTOUT env.

Thankfully, the dotnet package installed by package manager on Arch Linux disables telemetry by default. I left the env set just in case.

But my trust towards "modern" software has lowered. I default to run CLI tools, especially those built in JavaScript or .NET with network disabled:

    firejail --net=none

For ilspycmd, for example, I had to defuse its default "update checking" behavior:

    alias ilspycmd='ilspycmd --disable-updatecheck'

This is what I'd call user-hostile defaults.