According to Fraser Cain's Universe Today podcast it hasnt happened yet (think he mentioned it in last Saturdays' Space Bites), but is predicted to happen anytime between now and September.
I imagine if you're tuned into Universe Today
https://www.youtube.com/user/universetoday or Anton Petrov
https://www.youtube.com/@whatdamath youtube channel, you'll hear the day/week it happens.
I havent heard any estimates of how long it'll brighten for, but chances are it'll be several days / couple of weeks so you should get a chance to point your scope at it. Thats how I'm operating anyway
Big challenge for most of us here though is clear line of sight to Corona Borealis
Also exciting this will happen in the age of JWST, so its likely they'll use some discretionary time to observe the event, which should provide some outstanding images of a star in distress.