Counter-intuitively, the closed standard, Z-Wave, operates more like an open ecosystem. My Z-Wave Thermostat (ACD-2000, nearly the only Z-Wave thermostat that doesn't look like it hails from the 90s) swears that it requires the Alarm.com ecosystem on the store page - but the simple truth is that it wouldn't be Z-Wave compliant (and therefore couldn't be sold) if it didn't work with any hub (Aoetec in my setup - they are particularly friendly with the HA community). Compare this with an Ecobee: a Zigbee device which requires their hub (and other Zigbee devices are unlikely to work with the Ecobee hub, so I'm sure you get the idea).
Hue bulbs are one firmware update away from the same situation, even though Philips have "promised" not to.
I'm not sure what the situation is with Matter/Thread - my Google fu isn't strong enough to determine whether it will go the way of Zigbee (which it's based on, but merely as a channel) or Z-Wave.
As for LEDs and the rest? ESPHome. I do have some Hues, but that hub will go in the trash once all the bulbs burn out.