Cheers on the interesting video content you prepare.
We use teams adaptive cards for alerting exceptions to developers. Good to see others can refer this video to send messages to Teams.
If anyone is looking for a starter code to achieve this on custom strings or template strings you can take look at this thread:
Text to ms teams - Help / Activities - UiPath Community Forum
Message vs. Adaptive Cards
Also, remember that if you want to send custom adaptive cards, you will need to adhere by adaptive card json structure, else the json sent to teams will not be parsed by Teams. Simple messages will not have this problem, only adaptive cards.