Why bother? The old apps are going to stop working at some point (and soon, if the recent API breakage continues). If you don’t like what Twitter has become, stop using it.
"Why bother living if you're eventually going to die?"
I'm sure you can now see the problem with your argument.
My issue was only with the app not the service. I'm using a version of the app from March 2021 (pre-Spaces, pre-takeover) and it's peak Twitter user experience IMHO. Stories of the API deprecation have been greatly exaggerated.