With Link to Windows feature, you can use your PC to view notifications and reply to SMS, Samsung goes a step further in its ecosystem, allowing you to take calls and text from your connected devices too. For instance, I can take my phone calls from my Galaxy Tab S6 also.
To do this, log in to the same Samsung account on both the devices. Then, head over to Settings > Advanced Settings > Call & text on other devices. You will see all the connected devices on the list. Just enable the toggle next to the device you want.