Nobody at Roblox is saying "We want to have children do nothing else except play Roblox from dawn to dusk, we lobby against schooling and extra-curiculars to increase Roblox time"
Apple however very intentionally made messaging people not on iPhones painful, and purposely made it out like androids were inferior. They purposely make it so you lose your group chats if you leave iPhone.
Thats why it's the most evil. It's a planned system to use peoples social connections as pawns to rope people into Apples ecosystem. This isn't hypothetical, or "C'mon of course they are saying that!". There are court documents that show it.
I can assure you, with all my money bet on it, that no one in a roblox exec meeting ever said "We need to focus on lobbying schools to shorten the school day in key markets." No one at roblox is fantasizing about roblox replacing -all- (I mean this literally, not just entertainment time) facets of a child's life with roblox.
Whereas apple explicitly had their goal "Get kids using iphones, don't port imessage to android, families will be forced to buy iphones and stay on iphones to maintain familial communication."
That is evil.
I wouldn't count the IBM thing because I don't see it as part of the vernacular "big tech" of today; however I do think it's the most evil so far in this thread.
The others? They are mostly aggressive competition, especially the MS stuff, and altogether I don't see them as more evil than Apple's exclusionary UX. What's at the bottom of it for me is that it harms users directly, e.g. what others said about kids getting shamed for having a non-Apple phone. The one thing not mentioned yet that would qualify for me would be Meta's product altogether with its impact on teenagers; and various gambling simulators like Roblox.