Unless you are getting the economics of saving the day (you are a large equity holder / partner) then structuring your life completely around work is a fools errand.
Communicate your holiday plans, arrange coverage, put it team calendars, do hand-offs.. and then take it. Projects come & go, dates slip on their own. If you move holidays for project dates you will never take holidays.
The only exceptions would be if you are in a role with seasonality and its generally understood end of year / end of quarter / tax time / something is well known busy season and its in poor taste to disappear during it.
Communicate your holiday plans, arrange coverage, put it team calendars, do hand-offs.. and then take it. Projects come & go, dates slip on their own. If you move holidays for project dates you will never take holidays.
The only exceptions would be if you are in a role with seasonality and its generally understood end of year / end of quarter / tax time / something is well known busy season and its in poor taste to disappear during it.