[2022] is there a chance for a 50% crit chance item like old solari charge blade?or double crit chance item?

I personally think there is a world where we had an item that would situational increase your crit chance. Though it is a long shot and isn't something we are likely to do.

50% crit Chargeblade was a cool idea, but it was too abusable by non-crit users, and too much of a power spike off a single item.

There are methods for working around this like you said (such as reduced crit damage, only turns on if you meet a requirement) but at that point what is it really doing? If you end up doing the same/similar damage in the end nothing really changed, and if it makes crit users come online sooner it just becomes a must buy. I do like it for Quickblades, but that is a niche situation.