I believe it depends on the latitude, since away from the equator the Sun rises at an angle and not straight up. It can be low enough to still be below the visor, but risen enough to have moved far enough south (if in the northern hemisphere) to be problematic when driving southeast in the morning or southwest in the evening.
I found this image on Google search that I think illustrates the phenomenon: https://share.google/okYRf16lB1vegnVax
Obligate ram breathing is kind of mind-blowing. They have to swim to flow water through their gills because their gills have no muscles to flap like most fish have.
Only a few sharks are obligate ram breathers, though. Many species are able to take breaks from swimming.