Right click on top of the file/folder of interest and pick Send shortcut to Drive.
Select where you want to send the shortcut to (My Drive or a Shared drive) and click Add shortcut. This will allow file syncing with Drive for Desktop.
Cause
Shared with me does not sync via Drive for Desktop.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-04-29 UTC."],[],[]]