This is must. It is USP of Hubspot to have meeting link as part of CRM. No other CRMs have it. Salesforce doesnt have it.
And teams/Office 365 is most popular meeting software and will continue to be popular
Hubspot delaying this critical feature is just harasshing its own customers
Do a stat, how many of your currents users use office 365 for calendar sync and decide the priority of this issue!