Canon (T8i / 850D) viewfinder ISO display glitch?

I just noticed something but I don’t know if it means anything specific, if there’s a minor malfunction or if it’s always been that way and I’m just now noticing (never say never). Also I’ve not looked at the viewfinder of another recent Canon DSLR / mirrorless so this display may or may not be similar…?

When the ISO is set at 200 or above it’s normal, but if it’s below 200 there’s an underscore in the first decimal location. Also, if I set it to Auto ISO, it shows the “A” as expected, but the bottom segment is also mostly (but not completely) illuminated, so it looks more like an “8” instead of an “A”. Maybe the LED has partially failed?

I’ve powered the camera off / on but it persists. I’ve found nothing in the user manual that’s relevant, unless I overlooked it. There’s no operational issue that I’ve noticed (yet, at least).

Any ideas?

Thanks.