Welcome, @AWolf.3, to the community!
LSM6DSL and LSM6DSM have the same marking: SF, LSM6DSO is marked SO.
If you want to ask how to distinguish between LSM6DSL and LSM6DSM: the full name is on the bag of the packaging.
If the problem is resolved, please mark this topic as answered by selecting Select as best. This will help other users find that answer faster.
Regards
/Peter
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