They'll justify fucking anything with "sAfEtY" these days
This is gonna make using old.reddit auto redirect addons much more annoying
You can use redlib instance to browse reddit without an account https://redlib.catsarch.com/r/mildlyinfuriating
or if a specific instances breaks you can use something dynamic like https://farside.link/reddit.com/r/whatever to find one that's up
But its new reddit format, there were services like teddit that used a layout more similar to old.reddit but every instance I know of it as been shut down, the code still exists so if you have the means and ability to host your own instance you can https://github.com/teddit-net/teddit but I know than can seem daunting if you haven't done something like that before, but you could probably find a friendly user with some time on their hands to walk you through it, or maybe try a lying machine to lay out the process in simple understandable steps
or did you mean how does it work on a technical level?