This Chinese CPU and mobo is not meant to compete against Intel or AMD based system. This 4 core CPU is probably comparable to 2019 Intel or AMD CPU at best. This CPU meant for two markets, domestic Chinese consumers and Chinese government. The west sees China as emerging threat so they've been blocking lot of chip manufacturing tech and high end GPUs used for AI. The Chinese government wants to be less dependent on western technology and build their own domestic CPU. Also Chinese government may be paranoid about Intel IME and AMD ST spying on them so this CPU would alleviate that worry. Clearly it's not meant to be sold in mass to western consumers. If I had to guess actual competitive price of this CPU and mobo combo is around $150 at the most.
CPU + Mobo combo plus a CPU cooler which adds up to about $381.40 which is $8 more than Chinese CPU + mobo combo. I think that's close enough to be within the margin of price fluctuations. That AM5 mobo comes with four memory slots, PCIe 4.0, USB 3.2 and Wifi 6E. Those features may be worth extra $8 for some.
This is not a good deal. First of all I highly doubt this mobo and CPU will be Windows 11 compatible so you're out of luck there. For $373 you can find an AMD Ryzen 5 7600X and mobo combo deal that will vastly outperform this Chinese CPU. Also AMD's AM5 platform is DDR5 while this Chinese CPU and mobo combo is DDR4. $373 is a ridiculously non competitive price.
With the current state of streaming services mess, I think I would have signed up for disc rental by mail. Access to nearly 100% of media at highest quality for around 10 to 15 bucks a month seems like pretty good deal right about now. Sadly Netflix killed that part of their business so I can't even go back to that.