Telegram is probably the best example of a PWA It's not as good as

Google+ PWA , free and safe download Google+ PWA latest version Telegram PWA 4 Free Telegram PWA Speedy and secure alternative to WhatsApp

On understanding the importance of the web app, the company decided to invest in a progressive web application Even though Telegram PWA is

telegram apps center Die Progressive Web App von Telegram erlaubt eine höhere Reaktionsgesschwindigkeit auf den beiden großen Plattformen iOS und Android

telegram2024 Telegram is a cloud-based mobile and desktop messaging app with a focus on security and speed