For me, I would suggest a Ride1up roadster V2 gravel eBike. 33 pounds makes it easy enough to carry up and down stairs, or ride undulations on a flattish pavement course, not using any electrical assistance. if the smallish battery that saves weight is too small, it has a second battery that can purchased and easily installed to increase the range close to 50 miles. I suggest the gravel version because the front belt drive ring provides a lower ratio (easier to ride) than the standard Ride1up roadster V2 eBike.
When I looked for an eBike I purchased the Stealth Urban Electric Bike KBO Hurricane which weighted 37.7 pounds. I modified the bicycle with carbon fiber or much lighter alloy parts and reduced the weight 5.7 pounds. My reason for this brand/model was a youtube video by a 220 pound person doing a range test of 32 miles. I have ridden the KBO Hurricane easily 40 miles on flat terrain with and without any motor assist, it's weight is less than several mid 90ties non suspension mountain bikes I have owned, and most big box current mountain bikes with useless suspension.
You could always purchase a Ribble eBike that has a 24/26 pound weight, but it would be more than three, maybe 4 times the $1,200 price of the Ride1up roaster V2 gravel bicycle.
In my opinion a eBike should be as light and dependable as your pocket book will allow, the other feature on an ebike that should be sought after is Torque sensing as that really helps in climbing short steep and long gentle hills, unlike a cadence sensor.
Last inexpensive bicycle with a Torque sensor is
https://ridescoozy.com/ torque1 that could be easily modified to reduce its weight as I have done with my KBO Hurricane...