I disagree... Error codes from the OBD port are usually system-specific. They make troubleshooting very easy if you use online resources... I just want a quick readout on the included hardware.
Not a fan of dongles and such. I own a few different 'Amazon specials' and the UI feels like hot garbage (given I use them maybe 1-2x a year at most).
Anyone who owns expensive equipment and is serious about true ownership including all possible maintenance and repairs. Hi, I'm the guy who would be looking at it if it was visible without shitty dongles or 5-figure ASICs.
Tell your employer they could have share prices doing numbers if they did the slightest bit of QOL improvements for anyone remotely like me.