the only available solutions are wrappers for the mobile website, like SlimSocial.
noodlejetski
I haven't heard of any research results that have proven that phones or apps are actually listening to people's conversations, and am only aware of a research that has proven the opposite: https://gizmodo.com/these-academics-spent-the-last-year-testing-whether-you-1826961188
WhatsApp is now in Meta's hands
it's been owned by Facebook/Meta for almost a decade, so I'm not sure it warrants using "now".
no, but you can just save the post for checking it out later.
use the tunnel located in your country?
https://torrentfreak.com/private-internet-access-to-be-acquired-by-kape/
Some have pointed at Kape’s history. The company had previously operated under the name Crossrider and was active in the advertising space. Among other things, it installed toolbars with ‘potentially unwanted software.’ While the company has since switched to a focus on cybersecurity, this past has made some people suspicious.
extensions
you mean how Brave doesn't let you install any on mobile, while Firefox does?
regardless of the the reason, people ended up with non-functional eye implants.
now that's just rose-tinted glasses speaking. I remember how absolutely abysmal old Firefox' scrolling was, and how they've claimed multiple times that they've improved it but it was still horribly sluggish compared to Chromium browsers. I've been using Firefox Preview (and then Nightly after enough performance improvements have landed on it) for about a year just to have acceptable experience on mobile.