https://help.bungie.net/hc/en-us/articles/360049498031-Destiny-2-Cross-Save-Guide
[quote]Players who want to change their Cross Save setup and link to another platform account because they chose the wrong account will have to disable Cross Save, update linked accounts, and wait 90 days before they can enable Cross Save again. [/quote]
But when I deactivate cross save,remind me:Your Cross Save setup for Steam requires attention:
Cross Save cannot be unlinked for 88 days because you've purchased Silver on your Steam account recently.
Hi there!
That is correct. Cross Save cannot be deactivated after purchasing Silver as well.
You will need to wait this cooldown out before you are able to deactivate Cross Save.