This is what I use. Its open source. Loads faster than any other app ive tried. And best of all it also has really convenient features like putting reposts in a carousel, adding different slight color highlights to the background of posts depending on whether its a repost, reply or normal post. Also it has a thread counter like 2/5 so you know if a post is a part of a thread.
https://phanpy.social for having an actual human readable view with nested threads. PWA, great on mobile and desktop.
This is what I use. Its open source. Loads faster than any other app ive tried. And best of all it also has really convenient features like putting reposts in a carousel, adding different slight color highlights to the background of posts depending on whether its a repost, reply or normal post. Also it has a thread counter like 2/5 so you know if a post is a part of a thread.