The file still needs to be decoded. It's just not the MQA decoder in action, it may be the FLAC decoder. It won't be giving you full MQA be it it will still be decoding. i.e. Auralic can say that they are decoding an MQA file without infringing copyright.

Main: G61SL, 218, HD621, 2*7200SE, 7200HCSE, M6s, DSW, Apple TV 4K, NUC (Roon server)
Secondary: Wiim Pro, 3200, Audio Core 200
F80