on the zigbee2mqtt FAQ page there is an information about 20 devices limit with CC2531 coordinator.
I currently have 5 bulbs (Xiaomi Aqara LED bulbs) acting as routers and bunch of battery powered end devices (some connecting with routers, some directly to coordinator). My plan is to buy more bulbs so the total number of routers will be 20+.
The questions is if single CC2531 coordinator stick will be able to handle 20+ routers?
Can a router (bulb) connect over other router to overcome the 20 devices limit in coordinator?
If not, what are the alternatives?