Lying by omission is still lying, and is especially a concern when you have a duty to the people who are deceiving, such as an executive has to their board.
>>dragon+(OP)
Isn't that considered deceit rather than lying?[1]
[1] ChatGPT "lying is defined as intentionally making a false statement. If you are omitting details but not actually stating anything false, this may not strictly meet the definition of a lie."