What is the point of a modular IO if I cannot get an ethernet port? Or today only the old school people like me prefer to use a wired LAN connection whenever po

What is the point of a modular IO if I cannot get an ethernet port? Or today only the old school people like me prefer to use a wired LAN connection whenever possible and hate using Wi-Fi that is unreliable and slower? I don't understand that choice, but to make the laptop thin, no, a Thinkpad T14 is thin (maybe not as a Macbook, but who cares about a couple of millimeters) and integrates a full size ethernet connector. What is the point of modular IO if the IO that you are giving me is just USB, HDMI and a micro (not even full size) SD card reader? I would expect to have a whole range of possible ports, for example I use a lot RS232 ports, I would have liked to find a module to add a serial port to my laptop.