I think there are past reviews of these wow looking but no name radios that it is more about the looks than anything else. You like one of them, you go for it and hope that the hang over the next day will not hurt too much.
You will get comments about radio receiving problems, playback, etc. But it looks good. I think this is how these sell, look good, fresh, get a new image, etc.
If your radio has less functionality than these radios and you want to keep both the new radio and the car for more than a few months, it may be worthy checking something from the big brands.
https://www.amazon.co.uk/Pioneer-AVH-A3100DAB-6-2-Inch-Touchscreen-Multimedia/dp/B0781VY2FJ?ref_=bl_dp_s_web_1638865031https://www.amazon.co.uk/JVC-KW-M730BT-Double-Receiver-Android/dp/B06XCL9HGThttps://www.amazon.co.uk/Pioneer-Z710-Tuner-Resistive-Touchscreen-Bluetooth/dp/B07BKX9PWC?ref_=bl_dp_s_web_1638865031https://www.amazon.co.uk/Sony-XAV-AX100-Receiver-Bluetooth-CarPlay/dp/B01LY8222NI have no idea how good these are, but my gut feeling is that unless you are an expert, I think that no matter what anyone tells you, you may not notice any difference at all among them if the thing works as it should.
I am not sure what the radio of the third generation car can do, but if you think that any of these radios will give you something extra, even if it is just looks, go for it.
If you just want to listen to R2 in a different better looking radio, I think you may end up confused reading all these reviews and the whole exercise will be no different than reading car reviews for leasing a car for a couple of years to be stack in traffic. You may feel good that you have the best car in the segment but even the worst car in the segment would perform in exactly the same way under these conditions.
So I am not sure what you can do with these radios but I suppose their functionality is very similar and the chances of getting what you were promised, may be higher with the big brands rather with the no name ones. So in that sense, it may be like buying the big saloon from the Germans instead of the Italians/French/Koreans/Japanese, just because they make something that is good enough and it may not have the latest wow features but it is a mature trouble free product.