https://www.samsung.com/us/explore/dex/
It's actually really good. I can wirelessly turn my TV into a 4K Android tablet, and with a Bluetooth keyboard and mouse, it turns into a computer.
Same with a USB cable plugged into my desk's monitor to HDMI. If I didn't require a computer for development, I would not buy computers any more.
Wireless Dex is limited to 1080p and wired one goes to max 1440p
The Samsung DeX Station (https://www.samsung.com/au/galaxy-s8-accessories/dex-station...) is no longer manufactured which is a massive let down. It does however still work with the S10+, and I presume the S20. The ability send a network cable straight to the phone was pretty handy for a few situations.
My mom refuses to use dex, I found it to be great as a basic workstation. Definitely removes the need for eg a chrome book. Does not replace your power user machine however
Australia: https://www.samsung.com/au/findastore/
US: https://www.samsung.com/us/samsung-experience-store/location...