I wouldn't use 14 segment fonts for real hardware. I find these fonts extremely ugly. Many characters are total abominations and it all feels like a hack.
If you need mostly numbers and only some very basic additional info, I think the classic 7 segment display is fine to display something like On/OFF, Hot, C/F etc.
For better text capabilities there are character displays which don't need many µController pins and usually allow creation of some custom symbols. [1]
Having a fully custom LCD prototype created and maybe having something like 100 pieces manufactured is surprisingly cheap. [2]
And then there's the modern OLED displays of course with full graphics support and colors, but these are usually more expensive and more difficult to drive.
[1] https://eu.mouser.com/ProductDetail/Newhaven-Display/NHD-042...
[2] https://www.youtube.com/watch?v=mo4_5vG8bbU