My experience has been the iPhone chip is fast enough to still run pages just fine. Maybe those ones that load 300 adverts and relay out the page 5 times as they load won’t work but they hardly worked before anyway.
replySend me a webpage that you can’t view in lockdown. I haven’t had a single problem. I guess I’m just not really relevant in your eyes.
replyit's very rare that they break but there's some popular ones like booking.com
replyin my experience like maybe <5% of the web break