I might take a chance on the Ancheer. Its cheap enough, and the reviews seem good. Full suspension removes some stress from your wheels and frame if you are heavy.
A triple chain ring set up, with 21 gears, should mean there is the gear range to allow you to ride the bike without power, and as you get fitter, you can do this a bit more on your rides.
I got my first electric bike to commute to work in 2011. Although I still occasionally use my acoustic hard tail mountain bike, and really enjoy it when I do, once you have ridden an electric bike it makes it harder to find the will power to take your acoustic bike out!
Now I am retired I use my entry level Haibike Yamaha for exercise and fun rather than to get me to work and back. A real benefit of my Yamaha crank drive System, and one, if I am honest, I was not fully aware of when I bought it, was how well it rides without any power.
Back in 2015 when I bought my Haibike Yamaha, the other main option for me was a Bosch motor, and although I did not realise it at the time , The Bosch motor of that era was not fun to ride without power as it added quite a lot of resistance.
The other thing that forces me to exercise when I ride it, is that it is a torque sensor system that measures the effort I put into pedaling and adds a percentage of that effort depending on the setting you have chosen.
I rode my bike 18 miles from my home town to a neighboring town today, mostly cross country using tracks, and more importantly gradients I know well. This allowed me to ride without power in many places getting plenty of exercise and preserving my battery. I had only used 25% of my 400Wh battery that has now begun its eighth year of service. In theory that would give me the mathematical possibility of a total range of 72 miles. Obviously that is tosh.
I rode a total of 26 miles, and in the remaining 8 miles used 13% more of my battery. Probably 10% was used blasting me and my shopping one and a half miles home using a higher power setting and half of which was a steep hill.
So the total potential range of my battery for this ride varied between a high of 72 miles and a low of 15 miles.
If I were you, I would not put this of. We are just entering the part of the year that is great for riding a bike.