iMessage not on my mac.
Ever since i got this MacBook have never seen iMessage on my mac launchpad not sure where to find it.
The name would be Messages, in macOS to access iMessages or send/receive SMS text, etc when not from Apple products.
You could also look into Applications folder in your system user account.
• Use Messages with your Mac - Apple Support
https://support.apple.com/en-us/HT202549
• Set up to send text using Messages on Mac - Apple Support
https://support.apple.com/guide/messages/set-up-to-send-text-messages-ichte16154fb/11.0/mac/10.13
• Set up your iPhone for SMS text messages on your Mac - Apple Support
These often require a default iPhone w/ active cellular account to provide iMessages & SMS/text to Mac.
Good luck & happy trails!🌞