I think it's not. I haven't heard of any new updates for a while.
Yes, it is. The One Punch Man web comic is still in the process of being updated and new chapters are being released from time to time.
As of the latest information I have, the One Punch Man manga is not still ongoing. It had a defined run and has reached a certain endpoint for the main story arcs.
The One Punch Man manga isn't ongoing at the moment. Maybe the creators are taking a break or have decided to wrap it up for now. Keep an eye out for any announcements about its potential resumption.
The One Punch web comic can be considered somewhat canonical. It generally adheres to the core concepts and character developments, but there may be artistic liberties taken for visual or narrative purposes.
Yes, it is. Dilbert comic is still being produced and published.
Yes, it is. The Galaxion comic is still being produced and updated regularly.
Sadly, the TWD comic isn't ongoing anymore. It wrapped up its story and left fans with a memorable finale.
As of now, the Invincible comic is still going strong. The creators are continuing to tell the story and fans are still enjoying it. There's no indication of it stopping anytime soon.
The Boys comic is indeed still ongoing. It has a dedicated fan base, and the publishers have shown no signs of stopping it anytime soon. New installments keep coming out, keeping the fans engaged and excited.
Yes, it is. The Fable comic continues to be published with new installments.