Samsung stopped Exynos development a year ago. Cavium is basically dead (yes, bought out by Marvell). Qualcomm is interested only in mobile SoCs at mobile SoCs volumes where they can also sell radios, and Nvidia was traditionally not capable of delivering anything at promised power consumption.
This is from wikipedia (under "Exynos"), so apply the appropriate amount of salt:
On October 1, 2019, rumors emerged that Samsung had laid off their custom CPU teams at SARC.[21][22][23] On November 1, 2019, Samsung filed a WARN letter with the Texas Workforce Commission, notifying of upcoming layoffs of their SARC CPU team and termination of their custom CPU development.[24] SARC and ACL will still continue development of custom SoC, AI, and GPU.[25]
You misunderstood what that means. Samsung is continuing to develop Exynos SoCs using stock Arm CPU cores and AMD GPU cores. This will require fewer people hence the layoff.
Exactly; they do not have their cores anymore, they are going to use ARM's Cortex. So their SoC will be always average at best, by definition. They won't be able to make anything exceptional.
HiSilicon's Kirin chips use Cortex microarchitecture and are very competitive. I didn't follow recent releases, but I remember that the Kirin 970 was way ahead of the Snapdragon and Exynos chips at the time, both in terms of performance and power efficiency.
Huawei often releases new Kirin SoC on October with Mate series meanwhile Qualcomm reseases flagship Snapdragon 8xx on December, so Kirin outperform latest Snapdragon that released on last year.
