What happened is that the accessibility setting “reduce transparency” which indeed used to reduce transparency and made glass backgrounds darker, now makes them fully black. So dark icons don’t come out of the background anymore. What we got back is a slider that does not make the glass darker, just more opaque. But notifications are still white on light glass. So it really got worse for me.
Yeah, I did the same but found the experience worse. Currently I've set it at 75% where it is tolerable.
What happened is that the accessibility setting “reduce transparency” which indeed used to reduce transparency and made glass backgrounds darker, now makes them fully black. So dark icons don’t come out of the background anymore. What we got back is a slider that does not make the glass darker, just more opaque. But notifications are still white on light glass. So it really got worse for me.