I can easily install an ActivityPub server, with Glitch.
Show me the ATProto server that can integrate with BlueSky.
Never used it, but I've seen some praise for Snac as an easy to deploy activitypub server
> I can easily install an ActivityPub server, with Glitch.
Can you? The same Glitch that shut down last year? https://blog.glitch.com/post/goodbye-glitch
Regardless, ActivityPub and ATProto have different designs and goals. Your question is akin to comparing a helicopter and an airplane.
There's no such thing as a "ATProto server". How complicated it is, and the trade-offs it made are valid criticisms of it. It all depends on what exactly your goal is as a participant of a distributed social network.
A PDS? Here: https://blog.bront.rodeo/setting-up-your-own-pds/
Want your own AppView so you can have nekusar.net and post your messages and people on BSky see it ? https://github.com/blacksky-algorithms/atproto
ActivityPub zealots would do well to calm down for one second, this can't be good for your heart man.
There is no "AT Proto server" - https://overreacted.io/there-are-no-instances-in-atproto/