Just about any portable device can be bought with USB-C or wireless. For fixed desk hardware (keyboard, mouse, monitor, ethernet) you should use a TB dock anyway.
Yes, if you do presentations you probably need a dongle for the projector, but that has always been a mess anyway (VGA, HDMI, DP, DVI, it's never the same connection as your laptop).
Yes, if you use a camera you'll need an external SD card reader, but you'll need that for many other computers too.