Confirmed. I have terrain now on KSA build v2026.2.37.3699. I didn't have to do anything (dotnet-10.0 already installed). I am on Kubuntu 24.04 KDE Plasma 5.27.12 and Graphics Platform: X11 (IMHO Wayland is still too broken and I use my PC for 1. Work and 2. Games in that priority order).