VPNs and selective routing solve different jobs. A good VPN can be useful in its own scenario, while Flash Route is built for another job: choose a service in Chrome without changing the rest of the internet.
ItemFlash RouteVPN
Where it worksIn Chrome with supported servicesDepends on the product: an app, the OS, or a browser.
What gets a special routeOnly selected supported servicesAll traffic or part of it, depending on settings.
Choose a serverNo. Flash Route chooses automatically.A country, server, mode, or protocol may need to be chosen.
Regular sitesThey keep the normal connectionThey may use the VPN unless exclusions are configured.
Outside ChromeIt does not workCapabilities depend on the specific VPN.
Primary jobSelective routing for the services you chooseBroader route or IP changes, depending on the product.
What to remember
You do not need to choose a country, server, or connection mode: Flash Route handles that automatically. Keeping regular sites off the special route is a product principle.