USB-C to DisplayPort cables are like $14 on Amazon. I'm responding to you using one. I have a MacBook Air in clamshell mode with 1 USB-C going to the display and a $10 hub that does Power Delivery and 3 USB-A ports for speakers, Yubikey, and external SSD for backup.

I had a M1 Mac Mini but I do occasionally want to take a Mac with me so I replaced it with the Air. I only slightly miss the extra ports on the Mini.