Issue #2981889 by Nebel54, acbramley, timodwhit, bkosborne, fago, josephdpurcell, tim.plunkett, eiriksm, Sam152, grantkruger, shaal, gnikolovski: Performance Degradation in Layout Builder and other places likely

Issue #2597680 by stimalsina, neclimdul, paryank, Derimagia, timodwhit, Dries, vinothg, heddn, benjy, effulgentsia: Some migrations have warnings when node types don't exist