No issues with that. I’ve got a mouse that can either connect with a USB dongle or directly to BT. Works like a charm. Flawless, fast, no latency I’d have noticed.

Only downside: Have a fresh battery at hand. I’ve got a pack of two in my laptop bag. It lasts for ages (many months), but when it fails, it fails. And due to Murphy, it always fails at the most inconvenient moment…