WotC canceled their 4e digital tools when the lead sort of… well murder-suicided his estranged wife… pretty much exactly nine years ago.
Also, roll20 proably shoudl improve their UI if they want to compete with digital tools more directly. roll20’s html functionality is superb, but literally everything else about it is terrible and has never been improved much. I can’t stand trying to use their sheets, though some of the user made ones are good - except for when updates delete PC information which is a common problem.