Yes the only thing natively possible is still: ridge soaring.
If half of the people here would vote for this: Thermals, Up&Downdrafts - Realism update needed!
We could push this glider essential topic upwards in the priority list.
There is a good chance we could get up&down draft and thermal improvements way before an official glider release, as this was promised from Asobo a year ago.
As Paul said, the community gliders are already on a very good level, we only need to rid of the sim feature limitations from MSFS, so everybody (uncle, grandmother, father…) please leave a vote 