Android updates on Blackview phones?

How are Android updates KB BlackView?

I'm considering buying another rugged smartphone, but most of the brands apparently do a very poor job at ever updating the software with either Android updates or security updates.

Considering several of their models are still releasing with Android 13, it's kind of a big thing to consider when purchasing.

I see BlackView is advertising for their rugged tablet that they are guaranteeing they will upgrade it to Android 15.

If anyone would also like to chime in with their general experience with the brand, I would appreciate that as well.

Thanks in advance!