Has you seen any, even single one game or app that uses SDL wich is pleasure to play/use with real 68k amigas?
How about this game, I heard it uses SDL ->
Descent Rebirth AGA
No seriously though, you are right. Web browsing on 68k's is always going to be limited and it would obviously be better to have a native port but nobody has managed it (yet) so an AGA SDL solution is better than nothing.