For the qtwebengine/harfbuzz issue, Gustavo did instantiate rebuild for qtbase because of icu problem, after that we can update qtwebengine to *Backports*(yes, not SLE), this update fixed harfbuzz problem. This is already done, and it has been included in Leap 15.4 Build119.3. For the original issue in this bugreport, Build119.3 indicates this issue is disappeared https://openqa.opensuse.org/tests/2064262#step/opensuse_welcome/1 , opensuse-welcome is correctly shown in overview mode. I don't exactly know which change fixed this issue though since the last build is two months ago. I think we can close this report.