Hi Thomas
I am Dave, an Independent Advisor, I will help you with this . . .
SanDisk iExpand drives work perfectly well with Windows 10, Xbox, Microsoft 365 . . etc. there is no conflict with those drives
With regards to whether those drives will still be around in 3 years, no-one can predict that SanDisk do have a habit of producing new models of USB flash drive on a regular basis
What is true of USB Flash Drives is they are very volatile, and while a USB flash drive can last years, they are not as reliable as an SSD or Hard drive and can fail at any time and so are not suitable for long term data storage, they are really only suitable for short term file storage and data transfer . . .