Google Pixel 8 will be able to partially replace the PC?

It is needed, for example, to implement a function like Samsung DeX

Smartphones of the Google Pixel 8 line seem to be able to get support for USB DisplayPort Alt Mode, which will allow you to connect external monitors to them. 

Google Pixel 8 will be able to partially replace the PC?

This solution allows, among other things, to implement an alternative desktop mode when an external monitor is connected. That is, to turn a smartphone into a kind of replacement for a PC. Samsung, Motorola and Huawei already have such solutions.  

In addition, improved support for USB-C DisplayPort Alt Mode just appeared in the beta version of Android 14, although this does not mean at all that Google is implementing a special mode with the Android desktop interface in its new smartphones.