I'm also highly interested in this getting implemented because I already ran into issues using H2 in my tests which already migrated to the locationtech jts implementation from version 1.4.197 onwards. But I guess the dependent library geolatte-geom has to be upgraded first. There is a merged pull request already: https://github.com/GeoLatte/geolatte-geom/pull/69
But this one is using 1.16.0-RC1 of the locationtech libraries. I guess they want to wait for the final of 1.16 before releasing geolatte-geom.
But once this is done, I guess this ticket can be implemented. Any plans for this?