New Apple Mini

There is just a single audio jack, so you can't have concurrent audio in and out on the same port. Consider a powered Bluetooth speaker, and use the single jack for the microphone, or a USB-A or USB-C dongle with a microphone jack for that purpose.

If my Sony WH-1000XM4 headphones are any proof, the Bluetooth audio is excellent, even when paired to a quality Bluetooth speaker instead.

My M2 mini Pro connects a Logitech C920 Pro camera to a USB-A hub solely for the microphone support and external headphone or speaker as described for audio clarity.

Get a headset - wired is best https://electronics.sony.com/audio/headphones/c/headband?query=:relevance:snaAllCategories:headband:connectiontype:Wired:features:Built-In%20Microphone

That’s flat out wrong. You should stick to stuff you know best (i.e. better).