I don't know how you compared using Disney+ to Netflix and came to the conclusion that it's less bloated. In my experience on a Roku, D+ is SLOW, it takes forever to do anything from loading up, just browsing, thumbnails populating, or actually starting a show.
Netflix is bloated with tons and tons content that does not already have a built in audience/rabid fanbase like Marvel, Star Wars, Pixar and Disney classic has. With Disney I click through and see lots of shows with well known characters with decades of familiarity (legacy characters/content). Netflix I click through and have no idea what 90% of the content is via clicking through.
I personally have Never had any connection issues with Disney, Netflix, HBO Max or other streaming services.
Re: app issues, I've had HBO Max crash on me about 100x over the last year'ish - no exaggeration. This was across LG C1, Roku, PS4, Xbox Series X, and Android. It's improved substantially over the last couple of months, but it's still the most likely app to have problems. I would have cancelled a long time ago, but the content kept me hanging on. It looks like I'll be cancelling with the Discovery acquisition.
IME, Netflix still stands heads and shoulders above the rest in terms of UI quality, functionality, reliability, and speed. I've often thought that they should license out their stack. My ranking for apps (which I've used for at least six months), would be Netflix, Hulu, Apple TV, Disney+, Amazon Prime, and HBO Max, with Prime and Max often infuriatingly bad.
