"easy to clean" I find an important criterion for everything in the house. Glass doors I consider impractical in this regard. I am a fan of shower curtains and have set it up so that I can change the height of the curtain rod, so that whichever curtain, it can rest on the floor and is not easily sucked inward. I admit: many people have a different opinion, but precisely for that reason I want to emphasize at this point: just because "everyone does it" doesn't mean it has to make sense. Fashions can obscure the view. For example, I find the trend to mount sinks like a bowl on a countertop completely absurd in terms of cleaning - but it is very widespread. I understand the wish for a narrow passage into the shower - also splash-wise - well ... it is just not wheelchair accessible and can be impractical for overweight people ... but basically a good idea.
Also the question about the light ... We have a bright LED above the shower (splash-proof separated by glass) and I always enjoy turning it on, although I really appreciate daylight, ... but where there is none, you can help yourself in other ways.
We also have a level-access shower in our new bathroom and I find it very pleasant.
... and one more thing I want to add: the "Mörtelshop" on the internet has many cement components with which you can also design shower room walls. I haven't tried any of them yet, but I consider the store absolutely trustworthy and versatile. You get excellent advice in the forum there.