I have two Feit bulbs that have had their f/w flashed 8.3.1(tasmota) and all working 100% when accessed via their IP address and act independently (as expected). Install Mosquito on my Pi and added MQTT integration and both bulbs appeared immediately as devices and entities with a status. Despite unique IDs, device name and friendly name they appear to act as one pair in HA. ie on/off/colour/brightness selected on one happens to both bulbs.
I’d recommend watching DrZzzs Videos on how to set up Tasmota with Home Assistant, really helped me out.
Basically set a different name and topic for each device, setoption19 1 in console. But I’d go a little deeper into learning that stuff