No — native speakers don't say "discuss about." "Discuss" takes its object directly, with no preposition: you say "discuss the budget," not "discuss about the budget." The same goes for "explain" and "describe" — they attach straight to whatever you're explaining or describing.
The extra "about" isn't wrong in meaning. People understand you, and plenty of capable professionals say it daily. But it's a usage pattern native US, UK, and Canadian speakers never produce, so it quietly marks you as non-native in the moments you most want to sound sharp — a standup, a written update, a doc review.
The fix is one deleted word: drop "about" and let the verb carry the object.
Attach the object straight to the verb instead of adding "about":
Instead of
"Let's discuss about the budget."
Write
"Let's discuss the budget."
Instead of
"I'll explain about the process."
Write
"I'll explain the process."
Instead of
"Can you describe about the issue?"
Write
"Can you describe the issue?"
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