HiLetgo is legit, they've been around for quite some time and make decent ESP32 boards among other things. You can tell the FBA placeholders from Alibaba drop shippers because they're almost universally six letters and all uppercase like MOREPI; because this is enough for them to get a trademark to participate in the Amazon Brand Registry and get reduced seller fees.
I bought products from all these Amazon vendors last year, hilariously they're still around.