Yes. when new_collations_enabled_on_first_bootstrap = true is set, utf8mb4_general_ci is avaliable. I missed this tidb cluster setting.
new_collations_enabled_on_first_bootstrap = true
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Yes. when
new_collations_enabled_on_first_bootstrap = trueis set, utf8mb4_general_ci is avaliable. I missed this tidb cluster setting.