Is it really that useful to have feature parity across all platforms? In Telegram, for some features, it just says "please open this message on your smartphone"

Is it really that useful to have feature parity across all platforms? In Telegram, for some features, it just says "please open this message on your smartphone", and that's fine. If I had the choice, I'd prefer fewer features and lower resource usage over having access to the very latest functionalities, and you can offer the web version as a supplement for whatever is missing.