Hi
@Sonic Defender,
Just my humble 2 cents, I agree with you.
As BT Codecs stand nowadays, especially with the flood of wireless IEMs, certainly well implemented AptX can sound as good if not better than LDAC though aside from how well those codecs are implemented along with BT chip involved, the age old saying is very much true, head gear tuning as well as track dependancy matters.
With IEMs compared to headphones, codec implementations are a little more obvious though this can vary.
A good example of this is WF 1000 XM3, there is no LDAC or AptX, it subjectively doesn't as good as the previous M2 which is telling to some degree.
Whereas Helm Audio TW 5 & Klipsch T5 TW only use AptX & both sound a hell lot better than WF 1000 XM3.
& yes, I realise this is the 1000 X Heaphone thread but what I said is still relevant.
Hope you have a great day !