Early computer stuff was just shit and it was no joy to work on any of these computers. Except 68k Macs, which somehow are an utter joy to work on even today. (Not kidding, some computers of them had "screwless designs" where you could take the entire thing apart without even a screwdriver. Not even the mainboard had any. That was in the early 90s!) That said, e.g. MacOS would only accept certain brands and versions of SCSI harddrives so yes, they always pulled that kind of shit too. Computers' maintenance went sideways when cases became vertical. That will never be practical from a maintenance standpoint. I have a horizontal Node 202 case for my mini-ITX system and it's also nice to work on, if you accept the small size and do proper cable management. (and throw away these ridiculous stick-on rubber feet and replace them with proper screw-ins)
I also remember switching out resistor networks on a few ISA bus mainboards (and soldering thick wires to the underside on the voltage and ground rails) in industrial settings to get things like 32-port serial cards running, so it's nice that we also still have design faults like that in mainboards. Warms my heart.