Yes. The bluetooth device I'm mainly using are my earphones. Now whenever I connect my earphones to some device, I hear (as a feature of the product) a voice in the earphones saying "Connected". And when I disconnect the thin, I hear the word "Disconnected".
What happens in my installation of Arch, with blueman as the sole bluetooth manager is that the first time I have to pair with and connect to my device using the GUI and this happens without a hitch. I choose the pair option and then the connect option and I'm done. Subsequently, all I have to do is turn on my earphones, and within seconds, I hear "Connected".
What happens in Zorin is this: Without installing Blueman, if I try to connect to my device using the default bluetooth manager it simply does not work. Now pairing is not an issue. But after pairing, when I select my device from the list shown under bluetooth settings and click on the slider to connect, some times the slider moves to the 'on' position and in a few seconds just gets back to the 'off' position. And other times, the slider moves and stays in the 'on' position and the bluetooth manager shows that I'm connected, but in my ears I hear "Disconnected" and I can't even find my earphones in the sound settings section or play any sounds through them.
Now with a combination of blueman and the default manager, pairing is again not an issue (of course, it never was). But when I try to connect, neither blueman nor the default manager can get the job done. When I try to connect through blueman, I see error messages such as
Failed to connect: Resource temporarily unavailable or
Failed to connect: Host is down and then both blueman and the default manager start to falsely show that I'm connected. The say I'm connected, but I know I'm not because I just heard the word "Disconnected" and I can't play sounds on the earphones even after this. However, after carrying out this exercise, a new option becomes available when I right click on Blueman's systray icon, namely, Recent Connections > Auto connect profiles on <device-name>. When I choose this option, it takes less than a second for my earphones to get connected. Subsequently, when I turn the earphones off and on again, the first thing I hear is "Disconnected". Then sometimes I can still see the Recent Connections options and selecting it can get me connected, but other times the option is greyed out and I have to repeat the process of trying to connect with the GUI to make the option available again.
This difference in how blueman works alone and how it works with Zorin's (maybe Gnome's in general) bluetooth manager is what makes me suspicious of interference.
Note: I've also tested these earphones with Linux Mint 21 which ships with Blueman as the default manager and the experience is consistent with what I see on my Arch installation.