Checked in today and was informed of a potential devaluation for some — come Dec 1, 2020, Platinum or above members will no longer receive M Club access unless when booking directly into a club room or suite. This is in addition to the non-guaranteed late check out.
Check in agent awkwardly repeated multiple times that this is the only Marriott property in HK that is designated as a resort and hence other properties will continue to offer guaranteed lounge access and late check out.
Agent has graciously offered a late check out of 1pm though and advised me to give them a call on the day of check out to inquire about a potential 4pm check out.