Does QuietComfort Ultra Earbuds support aptx lossless?

Most of website describe that it supports aptx Adaptive but only few review websites such as sound guys describe that aptx lossless is supported. Bose website does not explicitly describe that lossless is supported. Is it really supported?

If anyone is using aptx lossless, what smartphone or DAP are you using? I want to buy one which support aptx lossless.