For phones, I think it's just the Sony and Asus and Chinese brands that support it. Pixels and Samsungs generally don't since they use Tensor/Exynos instead of Qualcomm/Snapdragon SoCs, and definitely not Apple.

Story is even more bleak on the headphones side, Sony prefers their own LDAC codec so they support that instead of AptX Lossless, a pattern shared by many Asian headphones manufactuers. Many western brands only support up to AptX HD and AAC because Apple/Samsung devices have the majority marketshare. Qualcomm's own site only shows 12 headphones that support AptX Lossless.

Now my opinion is LDAC is close enough to lossless that it's probably good enough for Sony and most people (the 1411kbps for uncompressed 16/44.1 CD quality generally compresses to under 900kbps which is below the 990kbps max of LDAC). Bose does have a headphone that supports AptX Lossless. It's just the Airpods that are far behind the competition.