I think there's a limit to the number of people that you can tag for notifications to work - presumably to prevent spamming. I'm estimating it's 10 but I don't know for sure.

The Discord bot notification sounds interesting - I'd be interested in that too - I think I might need to mute some people though 🤣

I do have a bot that would be helpful to me - I'll ping you a Discord message to see how hard it is 👍