Woah! That’s very frequent. If your hub requires restarts twice a day, I would first work out why that is using help from support.
Something (misbehaving device or inefficient automation) is hammering your hub very hard, and my experience was that @bobbyD can help resolve such issues.
To return to your original question, I have Xiaomi-compatible repeaters on one Hubitat, and all my zwave devices and non-Xiaomi compatible repeaters on another.
