Lack of anti cheat is rather outdated perception of Windows on Arm. Most popular competitive games like League of Legends have native arm versions now.
Even if your game is running natively and your anti-cheat is supported, you’d have gotten better performance on a Zephyrus G14/G16 for less money.
If you want to do local AI a MacBook Pro is either keeping up or going faster (faster memory bandwidth, token output writes faster), with faster single-core CPU performance as a bonus for general purpose snappiness.
In my eyes, the only buyer left is someone who can’t stand a MacBook Pro, or needs Nvidia/CUDA and a lot of VRAM.
To be more generous to the RTX Spark platform, it does seem to be priced head-to-head with Apple. I just think it has an uphill battle.