Full Carrier Support and Network Compatibility (5G, VoLTE, VoWiFi, etc.) should be #1 Priority
ASUS needs to make it so that the ROG Phone series is fully compatible with the carriers and networks in regions that they are selling it. The forums have mostly been flooded with demands of VoLTE and in some cases requests for 5G to be enabled in their region. It's the same requests and issues being reported time and time again.
The ROG Phone is first and foremost a phone and it isn't a wise idea to purchase a phone that plays games well but have calls that drop or have trouble receiving messages because it is missing some kind of approval from the carriers or because carriers don't like how the phone doesn't have the bands to support such features. I would've really liked to purchase the ROG Phone 5 but I'm very hesitant because I've read from people here that they have trouble connecting to 5G and VoLTE on T-Mobile.
PLEASE WORK WITH CARRIERS! If it's a money issue then allocate resources from other things into making sure that the ROG Phone meets basic standards expected of phones in 2021.
On a side note so I don't have to make another thread about it (especially since I don't think it should even be prioritized), I just want to say that I like how the ROG Phone 5 has theme packs. I think it would be cool to have a Gundam theme pack since ASUS has done a Gundam collaboration recently and released Gundam branded ROG PC components. NieR theme pack would be a cool one too but it's a little niche. But if licensed theme packs can't be done then a cool original mecha theme pack would also be awesome.