@_elena ah interesting, I always wondered what those instances with reactions are!
I'll have to check out sharkey and misskey and see if I can set up my own server and maybe migrate my mastodon to it and shut down my mastodon. Since it's only me here that shouldn't be a problem. Maybe I have to use an temporary home for my account while I do that though.
The "Tweetdeck" style UI is also available on native mastodon btw, you can change to it in your settings with "Enable advanced web interface"