It depends. It also gives the spin doctors time to do their thing, remove tracks etc.
For example, when MH17 was shot down by the Russian-backed rebels, they posted celebratory posts to twitter (they thought it was a Ukrainian military transport). Also, pictures of the actual SAM battery were taken as it was rushed back to Russia in the coverup. A few hours later all that got deleted and the spin machine started. "No, there were no Russian SAMs there", "it was a Ukraine fighter jet that shot it down", etc. They even fabricated fake radar tracks. People saying it was a SAM were denounced as conspiracy theorists, stuff like that. Only a year or so later when the official investigation started finishing up, the truth was confirmed.
In that case (as the investigation later proved) the earliest information was the most accurate. This is especially the case when there are powerful interests that don't want the truth to come out. Even Boeing covered up the first 737MAX crash.
That's why I think it's not a bad idea to read all the speculation. But keeping in mind that there is no definitive answer until the official accident report comes out. Any of the speculation could be true. Or even none of it.
And really, getting it 100% accurate in my mind is not something that matters. I just read it as an aviation enthusiast (and ex-pilot). What matters is that the experts writing the report are accurate. And later admiral cloudberg who expertly translates all that into normal-people language :) Whether I have an accurate view of what exactly happened really does not matter in this world.
Also, in many cases it is already clear what happened, like that ATR recently that was in a flat spin. The part that isn't clear is how it got into that situation. But the "what happened" is also important and that is one of the things you can often read about early.