It might take months for new WhatsApp mobile capabilities to make their way to linked Windows or macOS machines. The wait for self-messaging to appear on them has just just begun, and perhaps we've already waited too long for a separate call log. You can always open certain groups or discussions and dial a phone number, but the log is only available on your primary smartphone.
According to WABetaInfo, WhatsApp for Windows beta version 2.2240.1.0 is testing a new feature to the sidebar on the left-hand side of the UI, aimed to enable you see all of your voice and video chats in one location. Because the function is currently in development, your call history may not be properly synced with your primary smartphone – calls made from connected devices may not be registered on your primary handset.
The beta with this call log tap is progressively rolling out through the Microsoft Store and should be available on more devices soon. The addition of this capability to the stable version of the Windows app could help the Meta-owned company get closer to feature parity across linked platforms, but there is still a long way to go before all of your connected devices utilise WhatsApp in the same way.