No way, there are definitely reputable, well established ebike companies out there. Most of them are the same ones who make reliable bicycles like Specialized and Trek. Ebikes aren’t really that new at this point, in fact the first electric bike was invented in 1895.
What makes a fundamentally good ebike though, is that underneath the motor and battery is a good, solid bicycle. Buying some cheap, fly by night no-name bike ups the odds that something breaks while you’re riding and you end up with a life altering injury. Worse yet, the poorly manufactured battery Alphabetsoupcompanyname used is more likely to catch on fire and that 15AH battery is now an incendiary bomb that burns your building down.
It’s really, really not worth it to gamble on random Amazon ebikes, go to your local bike shop or an REI instead.