It's more common the more expensive the SFP host equipment, yes. This "compatibility" stuff is generally euphemism for "ridiculously primitive DRM" - lots of higher end network equipment checks the SFP Vendor ID and Serial Number and will reject it if it doesn't match an allow-list of "qualified" hardware. Programmers like these let you clone the VID/Serial from a "qualified" SFP onto a random SFP.