I was an Apple employee, though... And they'd bin it and give me a new one every 24 months because upgrading's not an option. Wouldn't even wipe them and hand them/sell them to employees.

All the actual workhorse machines were Lenovo. If you worked with external clients, you'd get a Surface Pro so they didn't have to work around your incompatibilities with their software, systems, and enterprise environments.

Also used to use an old Pentium 4 we found as a team server because multi-threading and 64-bit wasn't available for some MS Enterprise applications in macOS then, but 365 and applications like Power BI is obviously what Apple runs on. This ancient box had a 4:3 monitor and an IBM logo on it, so it was made some time before 2005. But 64-bit CPU and no macOS, so it crunched calculations faster than the 6-core i7 in the MBPs. The day we could finally use all cores and 64-bit on the macOS systems was amazing, but we still kept the old IBM box around to monitor and log connections. I like to think my old friend is still kicking on...