iot – Can I use any MQTT library to connect to an existing device with its own broker?

I’m new to MQTT. I recently built a small simulation system, where I use Solace Pub/Sub Broker, and use Solace client library to build the message producer and consumer.

So now if I am provided a real device with its own broker and publisher, I just need to build the consumer client, can I use any MQTT library to code, or do I have to find out what the device has and use the same one?

I’ve tried with Solace but I do see that there are a lot more out there, if you guys have any recommendations I would be thankful.