Notably, Digg updated which also involved a worse interface and didn't have an "old Reddit" interface you could access. Going to a site that was like the old interface involved leaving Digg and joining Reddit.
That is likely why you can now access older Reddit interfaces. They feel that many people will stay if they can find a way to use the new interface (and they may be right about that). The Digg approach of forcing all to use the new interface was a step over the line for Digg and Reddit likely fears a similar thing could happen to them.
MiXplorer - https://mixplorer.com/
A file explorer allowing for me to transfer files over the network. When Solid Explorer suddenly didn't seem to want to do network transfers anymore (likely because Windows updated something), I waited for that app to update to fix the issue. It never did. I found that MiXplorer was a good alternative that transfers files over the network just fine and works nice and fast as well. The interface takes a bit to get used to (meaning it isn't the same as Solid Explorer) but the app is certainly worth using. Importantly, I can transfer files over the network without issue again.
Notably, this app is free to download (from XDA) however the Google Play version is not free. The Google Play version (which supports development) is a one time paid fee.