Coming from the assumption that Facebook should have tons of experienced people using React, their implementation on Facebook.com just plainly sucks after 7+ ye

Coming from the assumption that Facebook should have tons of experienced people using React, their implementation on Facebook.com just plainly sucks after 7+ years. The UI is slow, breaks back button navigation often, loads completely different views in case a tab goes into background and gets reloaded (I have multiple tabs open from FB Groups that interested me, many of them default to opening my Home feed or the Groups main page after a background reload). If Facebook.com cannot get it right, who actually can? "No True Scotsman" is also a trope going on for > 100 years, yet you are appealing to it.