Like it or not, commercial computing is primarily Microsoft environments. Businesses are moving to Azure/O365, but there's still a lot of on-prem AD out there, and a lot of businesses that are stuck in between with some form of hybrid hodge-podge. It's definitely more difficult to do admin tasks for individual Windows endpoints vs. Linux, but on the other hand there is no FOSS equivalent for AD forest management. In a corporate environment, the ability to manage large numbers of endpoints at scale is more important.

You probably shouldn't be using iPerf3 on Windows, but instead use the native nttcp.

tracert is included with Windows by default, no need to install a separate utility. robocopy is also included with Windows and can be used to do incremental backups if that's your use case.

If you have to manage Windows systems you should learn about Windows-native tools, rather than trying to drag the Linux-native tools you're used to onto Windows just for the sake of familiarity.

That said, installing (and updating) software on Windows is absolutely a pain compared to the relative simplicity of a Linux package manager and I'm 100% with you on that. I highly recommend chocolatey, which attempts to work as a package manager for Windows. All of the software that you install with chocolatey can be updated with a single command, similar to running updates in a package manager on Linux. If you can implement this on the Windows systems that you have to manage, it will make things easier.