Hello Dawid_93,
Thanks for reaching out to Microsoft Community. We understand how important for you to extend the display from your device to your external monitors.
I would like to inform you that Surface Pro 7 has a regular USB-C port which supports most of the peripherals nowadays. As by design, your device can also support up to two external monitors via dock using an appropriate cables wherein you can duplicate or extend the display. But based on your preference, I believe you're trying to extend the display where you'll see everything spread over all screens, and you can drag and move items between them. See Connect Surface to a TV, monitor, or projector (microsoft.com) for more details.
I hope this answers your concern.
Kind regards,
StevenK