Can two macbooks connect through bluetooth

renewal322 wrote:

I have two MacBook Pros 2017 models running macOS Monterey. Can I connect them via BlueTooth and use one of them as extended screen?

No.

SideCar will allow a iPad to connect— Use an iPad as a second display for a Mac - Apple Support

renewal322 wrote:

Would connecting the two MacBooks via Thunderbolt cable permit one to be used as an extended screen?

No.