Thank you for your feedback about thermals - every RL glider pilot feedback is very valuable as current thermals implementation although ambitious is seriously lacking basic thermal properties (like lacking spatial connection between thermals and clouds - there are strong blue thermals above condensation height surrounded cumulus clouds without thermals below them, also in msfs thermals often do not access cloud from the bottom but rather hit it from the side).
Those are serious issues for cross country soaring - me and other RL glider pilots did some test during SU11 beta - here is our feedback thread [6] Improved atmospheric simulation with a big focus on Thermals and general tweaks for the CFD
I am considering filing those as bug reports as it prevents realistic gliding (with current state best (but unrealistic) tactic is to avoid clouds as they limit you climb height and go for those strong “blue thermals” in between).
Current active wishlist for thermal improvements is here Thermals, Up & Downdrafts - More Realism Updates please consider upvoting and commenting also there.
As current organisation of forum is not very glider-interest friendly - to help msfs gliding community to grow and beter find gliding posts there is also a proposal to add a glider subforum, but we need more support as mods seem not to be that eager to create it - Glider forum
It’s like in a RL aeroclub - if we won’t be vocal about deficiences no positive change will happen, so glad to have you here. 