For splitting the app in the taskbar I found it useful to "install" the PWA (you got to find the hidden option in chrome for that..), if it's supported by the website... It still uses the same cookies and addons, but at least it doesn't easily get merged with the main browser window and behaves like a proper desktop application. I mainly use firefox though and it doesn't support PWAs (easily, at least). It's a shame it's not more common, because it's a much better way to run software than the many electron apps, each having their own chromium installation (no download, no long installation process, full sandboxing, and you can have addons & adblockers affect the pwa!)

you can create shortcuts of web addresses and it'll open that address in your default browser