Which one is better for async context? (Find or FindAsync)

Working with Data Drivers & ODMs
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1

Lets say whole application in async context. So which one is better for simple querying ?

await _coll.Find(x => x.Token == token).ToListAsync();
await (await _coll.FindAsync(x => x.Token == token)).ToListAsync();

If it is first one: I would like to clarify whether using the Find method in an async context will block the thread from taking on another task.