Comment by numpad0

The problem with that kind of feature/benefit based thinking is that it won't correlate with code or computational footprints well. That's like justifying price of cars with seatback materials. That's not where the costs are.

Modern chat apps like Slack, Discord, Teams, etc. are extremely resource intense solely by being skinned Chrome showing overbloated HTMLs. That's it. Most of the "actual" engineering of it is outsourced and externalized to Google, NVIDIA/Intel/AMD, Microsoft/Apple, etc.