1-4 does not fully pertain since you don't HAVE to sell, for the umpteenth's time.
You've got a NY Central park facing apartment. When you are going to sell...the likely answer is never..lob it to your descendants.
Trust me I thought of this... Pass it on to your descendants!!!!
In fact that’s one valid option!!!
Btw how much is NY Central park facing apartment? Never thought about it.... 2 beds at least? Just to estimate Bitcoin price

Not a good idea to pass it on if you live in the USA. The Biden administration has proposed the removal of "step up in basis" which means your heirs would have to pay the capital gains tax on gains you accrued rather than have the basis reset to the value of your bitcoin at the time of your death.