Probably bad luck. There are quite a few framework laptops out there and plenty of folks using other chargers, so far there doesn’t seem to be a general trend that they don’t work or cause issues.
But I’d stick to known brands, the mystery ones often don’t perform as claimed and are pretty shoddy on the safety features. Anker and UGreen seem to be popular and reliable based on forum posts. I see you had an Anker that died, but try another charger and hopefully your luck changes.
The only folks I’ve seen post on here that are running speeds other than 5600MT/s are also reporting RAM issues.
That doesn’t mean it can’t work, but I’d gladly pay the 40% premium to have a supported experience. If you do have issues you could end up buying or at least finding 5600MT/s memory before an RMA is accepted, if it comes to that.
If you’re buying 32gb the difference is around an Andrew Jackson. That’s a lot of risk for $20. Choose wisely!
I hope