Vesnoro installs straight from the browser: an icon on your screen, lessons without an address bar, and what you already played works offline.
You are in Chrome: the Share icon is at the right of the address bar, then the same steps.
This happens right after an uninstall: Chrome hides the quick prompt for a few minutes, but the menu path always works. If the item is not there either, restart Chrome.
In Chrome and Edge an install icon appears at the right of the address bar. In Safari on Mac: File → Add to Dock.
Vesnoro