In all fairness, you should consider Entity Framework, not Linq, when speaking about ORMs.
And the first versions of EF sucked compared to the others frameworks that were available at the time.
Linq => expression trees => provider => native query language of data source => data source.
Written correctly, you can pass expressions around like:
repo.Find(c => c.age > 65 && c.gender == “male”)
And the expression can be interpreted at runtime by either EF creating native sql or the Mongo driver creating a native MongoQuery or even an in memory List for unit testing.
No matter how good another ORM may be for another language, what made C#s implementation better was Linq + expression trees.
There was also another Linq/ORM I used back in the day for Postgres. I can’t remember the name of it.