Business as usual although slower.
I do not want to give advices, so only my personal thoughts here:
If you look to proper MTBs, all of them are chain/derailleur. IGH is less efficient and it is heavy. A field repair of a tyre with the IGH is more complicated as well. In my opinion, IGH e-bikes excel in the urban environment, especially as commuters (no dirt, no maintenance).
Now, riding a heavy (and little suspended) e-bike is doable on easy trails. I ride forest fire-roads with my Vado pretty often. As long as the trail is really easy, no issues. It it becomes more difficult (like, tree-roots, sand, damaged trails) then I regret I rode into the forest... Meet a fallen tree blocking your route and you're done!
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I was so irritated with that obstacle I used my superpowers to lift the Vado and carry it over the tree! (Not recommended).
To be absolutely honest: My Vado SL 4.0 with Redshift ShockStop suspension and removed front fender fares 100x better in the forest than the heavy Vado! (And you can lift the SL easily). Currently, I try to limit my "big" Vado rides to sealed roads and gravel only.
A "thank you".
30 months, 13,000 kilometres.