I'll illustrate my point of view with nurses. Seems like the obvious thing to do!
In gaming culture, this is puritanical:
And this is perfectly okay, normal, and an acceptable default:
See, there's a place in gaming for Nurse B. But it's one tone and unwelcoming if she's overwhelmingly the only kind of nurse we have in an entire medium. Because as much as other mediums like movies value youth and attractiveness, your average movie would not depict Nurse B instead of Nurse A (who is pretty, indeed).
Well, of course
On face value the two images you have posted really conform to reality vs fantasy. The first is what you'll see if you enter a hospital, or a patient in a sitcom reality drama does.
The second is what you might see in some form in a fantasy either in a different era, time or whatever it is being depicted. Often the game, movie or TV show knows it is portraying something outside the realms of 1:1 real life.
50% of the time in any given game there are suspensions of reality taking place...
Often if B appears in scenario A, people would be a bit lost for words. Not to mention such a situation might not even get to appear on day time TV. That's undeniable. If B appears in its own vacuum then ymmv on how people will respond, but sure, some may enjoy it, laugh at it (as in find it fun, not laugh AT the actor/character in a demeaning way) and ultimately see it for what it probably would be. Some sort of fan service, cheap titillation and so on.
Gaming can often tip to scenario B, things being done for "eye candy" and to "titillate". That is not instantly perverted, though, and like my words about day time TV above often in games if there is going to be nudity/sexual themes, like violence, content will be rated AT LEAST T, often M. Or in UK standards, 15 if not 18. Content doesn't just get to get out there rated PG with boobs and guts flying around. Adults exist just as minors playing Mario Kart exist (and hey, adults love Mario Kart too!). Adults often enjoy... adult fantasy. Which from the dawn of time has included violence and sex powerplays.
Gaming also tips to scenario A, though. Not every single game out there deals with sexualisation. Many are very grounded, based on real life and often at times with nothing about sex or even violence. That is what rubs some the wrong way when diversity really means, what I want, rather than everyone in the industry being allowed a slice of the pie. At times a pie which may well cater more to one audience than another, but I nodded to that earlier. Gaming is still heavily male dominated. Over time this is getting "better", as in within employment, but yes, far more females are gaming than ever. Many developers are stepping outside comfort zones as well, and I personally thought Horizon was a great example of this from a developer who's largely done safe FPS. Although, some of the shit Horizon got... sheesh.
The thing is though, to have a balanced argument in here you also have to accept females also enjoy sexual stimulation, even from female characters. Male characters too, but females enjoying powerful, sexy and confident female characters tends to come from different parts of their brains being stimulated over a generally equal male who views for straight titillation ("titillation" for females as I also alluded to earlier often comes more from imagination, which is why they dominate in the romance novel sector). Every time you mention cosplay it immediately gets shut down with "STFU about cosplay", and someone brings out some stupid as shit bingo card. Again, spoken about at length many posts ago, sex-positivity often involves confidence, expression and the ability to be sexual. Hence, the cosplay world is on fire with many of the "problematic" characters in gaming (company marketing knows this too with the rise of public gaming expos/events!). It's the female brain taking a sexualised character and appreciating it, but maybe for slightly different reasons than the male brain does. To simply shame the male brain, and prop up the female brain, around the exact same character, is precisely what leads to people questioning if others have some genuinely deep seated issues around the topics of sex/sexualisation. I mean, see how quick, if at all, some of the posters in here shaming and talking down about sexualisation will go the same tirade at a female gamer who enjoys dressing as Quiet or Cindy. I'm certain anyone doing that would be scolded, told to mind their own business and told not to shame that woman for enjoying expressing their sexuality... At the very least in relation to that, I wish some wouldn't be so quick to throw some males under a bus as perverts, lunatics, oppressors, misogynists or any other serious offences unless there is serious evidence. Simply enjoying sexual fantasy/sexuality/sexualisation is not grounds to instantly shame, put down and name-call. No matter what gender you are. This is what can swerve into sex-negativity and a whole range of mental issues around shaming leading to anxiety and depression in younger minds. Adult minds too, though.