What do you do when two team members give you completely different status updates on the same task?

Focus on tasks, not the people. Probably, both are right about their answer. Better to define what "done" means. It is also good practice to ask "what is left?" instead of "what is the status?"

It gives also good hint about the work. Is it really about to be done or the most complex part is pushed to the end?

Syed, another idea / consideration for you ...

"Task" suggests its low formality work.
Not worth documenting.
Not worth standardizing.
Not on the critical path.
Interdependencies don't matter.
Irrelevant to Lessons Learned before & after.
Not helpful to Future Stakeholders.
Might be micro-managing.

On the other hand, "deliverable" suggests high formality work.

Yes worth documenting.
Yes worth standardizing.
Yes on the critical path.
Interdependencies absolutely matter.
Yes relevant to Lessons Learned before & after.
Yes helpful to Future Stakeholders.
Obviously not micro-managing.

The work might not be so cleanly in either camp, but the clarity feels worth exploring.
What's also important is that your two team members see the work the same way. 😊