85642 Support iOS arm64 simulator (team, platform-ios, tool, cla: yes, waiting for tree to go green, platform-host-arm)

85650 Wait for iOS UI buttons to exist before tapping (team, platform-ios, cla: yes, team: flakes, waiting for tree to go green)

85661 Update README.md (team, cla: yes, waiting for tree to go green)

85672 Change devicelab test ownership (a: tests, team, cla: yes, waiting for tree to go green)

85673 Revert “Randomize Framework tests, opt out some tests that currently fail. (#85159)” (team, framework, f: material design, cla: yes, f: cupertino)