I work in IT support, the options for good, and Foss software on the technician side of most RMM tools… Vanishing small, if any.

There’s a lot of platforms that support monitoring and management on the client side, but when it comes to technician side tools, GFL. Most vendors don’t even mention it at all, fewer support anything other than Windows. FOSS isn’t concerned about the IT support folks because almost all FOSS is made by people who can build their own computer and don’t need support.