From https://docs.jboss.org/hibernate/orm/6.0/userguide/html_single/Hibernate_User_Guide.html#basic-type-annotation UserTypeLegacyBridge provides a way to use legacy named types:

@Type(value = UserTypeLegacyBridge.class, parameters = @Parameter(name = UserTypeLegacyBridge.TYPE_NAME_PARAM_KEY, value = "text"))
private String someText;