Modern eMTBs are all pretty good these days... they are all capable, but all of them also have the potential to play-up - durability and reliability can still be the luck-of-the-draw unfortunately, regardless of the price you pay and brand reputation. From what you've shared, I would only consider full suspension (which I believe you're already looking into). And although you're intending to do "trail riding" I would encourage you to consider getting an 'enduro' eMTB as opposed to a 'trail specific' eMTB. Don't let the weight, long travel and slack head angles fool you, the motor makes them very capable climbers - but will pay dividends when you start going down those trails (notice I didn't call it downhilling because that's a different category). You mentioned that you have been riding motorcycles and so you are accustomed to riding at higher than bicycle speeds. The moment your trails start pointing down, trust me you'll be glad you've on a bike with enduro DNA. The component specs are just a notch better than what you'll find on trail specific eMTBs... it'll have larger brake rotors, four-pot hydraulic callipers, better suspension sensitivity and adjustability, wider rims, fatter tyres, etc.
My advice is to research what brands are common in your area, or the LBS along your trails... brands with a good reputation for availability, warranty and parts replacement. They are electrical appliances and at some point will need specific servicing that is not DIY attainable.
All the best in your hunt, and if you end up stuck with several choices that all fit the bill, choose the pretty one.