possible explanation as of why SSD is zeroed

[terminator2]

I have also learnt that trim does not work for FAT /ExFat file systems .So is it advisable to have FAT32 partition instead of NTFS for internal OS SSD?

I missed this. My question would be why you'd not want TRIM?

Often customers blame SSD sellers for data loss due to Trim ,claiming had it been a mechanical disk deleted or formatted recovery was possible.
Sellers don't educate customers about Trim and risks involving accidental deletion / formatting etc.
They ask possible solution to get saved from Trim.

[terminator2]

I have also learnt that trim does not work for FAT /ExFat file systems .So is it advisable to have FAT32 partition instead of NTFS for internal OS SSD?

I missed this. My question would be why you'd not want TRIM?

Often customers blame sellers for data loss due to trim invocation claiming had it been mechanical disk recovery was possible.
They ask possible solution to get saved from data loss due to accidental deletion / format on SSD's.
While FAT32 is ruled out ExFat might not be suitable for internal storagelike OS and data partition.

[Arch Stanton]

I have also learnt that trim does not work for FAT /ExFat file systems .So is it advisable to have FAT32 partition instead of NTFS for internal OS SSD?

I missed this. My question would be why you'd not want TRIM?

Often customers blame sellers for data loss due to trim invocation claiming had it been mechanical disk recovery was possible.
They ask possible solution to get saved from data loss due to accidental deletion / format on SSD's.
While FAT32 is ruled out ExFat might not be suitable for internal storagelike OS and data partition.

But data is lost due to deletion. TRIM is a result of deleting data. I mean, I can see your point, but it's nonsense: At some point, if you intentionally or accidentally delete data, it's gone, TRIM or not. Fact that under right circumstances deleted data can be recovered is not by design, it's a consequence of 'lazy deletion' and the goal of that lazy deletion (let's just flag it as deleted) wasn't to accommodate recovery but to make deletion faster. You could argue that due to TRIM, file deletion finally works the way it's supposed to work.

[terminator2]

I have also learnt that trim does not work for FAT /ExFat file systems .So is it advisable to have FAT32 partition instead of NTFS for internal OS SSD?

I missed this. My question would be why you'd not want TRIM?

Often customers blame sellers for data loss due to trim invocation claiming had it been mechanical disk recovery was possible.
They ask possible solution to get saved from data loss due to accidental deletion / format on SSD's.
While FAT32 is ruled out ExFat might not be suitable for internal storagelike OS and data partition.

But data is lost due to deletion. TRIM is a result of deleting data. I mean, I can see your point, but it's nonsense: At some point, if you intentionally or accidentally delete data, it's gone, TRIM or not. Fact that under right circumstances deleted data can be recovered is not by design, it's a consequence of 'lazy deletion' and the goal of that lazy deletion (let's just flag it as deleted) wasn't to accommodate recovery but to make deletion faster. You could argue that due to TRIM, file deletion finally works the way it's supposed to work.

Yes 100% agreed