Using Desktop mode by default in Safari on iOS. The page shows a QR code.
After changing to Desktop mode it asks to add it to the home screen. I’ve add it and then launch it and, of course, the web app uses Desktop mode Safari and doesn’t work at all, showing the qr code.
I don't remember game ports on any of the Thinkpads (I worked for IBM at the time and serviced a lot of the very early 700's and 710's).
They had parallel ports, DB9 serial, DB15 VGA, and a couple of PCMCIA/PCCARD slots, IIRC.
Game ports were DB15, and as the Thinkpads were squarely targeted at business users, taking up the real estate for a "game" port would seem unlikely, and possibly even a turn off for buyers of that era.
At some point internal modem's and NICs came along, but I think we might have been out of the 90's by the time that happened. I remember juggling an analog modem, 10Mbps Ethernet and 4/16Mbps Token ring PCMCIA card, depending on what I was doing at the moment.