It varies dramatically from make to make and even from model or year of the same make, but as a whole
EVs are still less reliable than average. Probably more like a 1995 Chevy Corsica than Camry or Yugo...
If you can get by with 75 miles of range and don't mind glacial recharge times, the 2012-2014 Toyota Rav4 EV was very reliable*, but they only made ~2500 and afaik all were sold in California. *Tesla supplied motors did have a tendency to whine as they aged and were often replaced under warranty even though they worked fine. Tesla had the same whine in the model S and eventually fixed the issue.
Toyota's new BZ4x had serious problems with its rollout (wheels falling off is never good), but I expect it to be decent long term.
I'd avoid the 2011-2012 Leaf unless you are willing to drop $10k to upgrade/rebuild to newer/larger batteries. Even then, I wouldn't recommend it if you live in a hot climate. 2013+ were a bit more heat tolerant. Range might be as little as 30 miles on original batteries but over 150-200 miles on new/upgraded batteries. 2018+ had 150-200+ miles of range and have finally achieved average car reliability.
The Mitsubishi i-miev is disposable - avoid unless you want a largely unsupported project.
GM's EVs (bolt, hummer) are still problematic.
Ford's lightning is better, but still less reliable than the average truck. The Mach-E has been about as reliable as the average domestic suv.
Tesla ranges from a little below average to a fair bit above average depending on the model and year. I doubt any other EV maker has as many 200,000+ mile EVs on the road today, but build quality can be spotty...
Rivian's reliability has been disappointing as are their collision repair costs (minor dents can cost $40,000 to repair to like new).
Kia & Hyundai tend to be a bit under average reliability, especially if you factor the cost to repair minor collisions.