Comma with Subjects and Verbs
With few exceptions, a comma should not separate a subject from its verb.
Writers are often tempted to insert a comma between a subject and verb this way because speakers sometimes pause at that point in a sentence. But in writing, the comma only makes the sentence seem stilted.
Be especially careful with long or complex subjects:
from Grammarly Blog https://www.grammarly.com/blog/comma-with-subjects-and-verbs/