That's a mixed bag: most Zigbee bulbs are repeaters but repeat poorly for non-bulbs. Sengled is an exception because they don't repeat, and some have had good luck regardless of this fact with others (some do appear to be better, and some may be perfectly fine, but a few are known to be quite bad). Using a second Hubitat dedicated to bulbs is one way to solve this issue but not much more convenient than using a Hue Bridge. Most of my bulbs are Hue Bridge bulbs, and it works fine as long as you don't need instant status reports from your bulbs (or you change it from Hubitat directly if you do). Most motion sensors can be paired to Hubitat and used for Hue bulbs that way--regardless of where the bulbs themselves live--though Ikea's is likely an exception as it's probably designed for direct pairing to bulbs (something you could still do if both are paired to Hubitat and then you link them to the bulbs, but Hubitat won't be in the loop for its status).