I did this on an old 26” HT I converted to “gravelbike” by adding 700cc tyre but kept the front suspension. Fitted 33mm gravel tyres and it is a very nice bike, and never felt I need wider tyres, but obviously the 100mm travel in front helps. The futureshock may have a similar impact
I think it can work well but depends on terrain you will ride - if mostly good jeep tracks, farm and corrugated roads and endurance rides I think it is a great and cost effective option.