Be careful if you are an audiophile, if you have high-end headphones, or if you are sensitive to latency and lossless quality.
Mediatek does not support AptX codecs, I don't think BT 5.3 latency is that low or there is an equivalent to AptX Lossless (LDAC but unknown to top brands)
The specifications of the 3.5 audio jack are also lower.
In summary, if you have wireless headphones or earphones like Master & Dynamic's, Sennheiser, Bowers & Wilkins and some other excellent brands (Full version AptX, no LDAC) you will have quality equivalent to 20€ devices (AAC, SBC )
Remains the resale solution for the purchase at Sony with LDAC at best. WH/WF-1000XM3-4-5 are excellent
Attention to specifications and tests, GSMARENA list of AptX !!!! and request refer to Rog6 audio test!!!, most other sites don't specify anything about codecs and profiles, below is the correct information.
Rog 6D/6D Ultimate
Hi-Res Audio up to 192 kHz / 24-bit for 3.5mm output
Bluetooth® 5.3 (HFP+A2DP+AVRCP+HID+PAN+OPP), AAC, SBC, LDAC
Rog 6 / 6Pro
Hi-Res Audio up to 384 kHz / 32-bit for 3.5mm
Bluetooth® 5.2 (HFP + A2DP + AVRCP + HID + PAN + OPP), supports Qualcomm® aptX™ Adaptive and aptX™ Lossless