I'm guessing it's like Christianity where there are leftist Christians who follow Jesus' more progressive messages such as giving to the less fortunate and healing the sick, and then there are the scary Christian evangelicals that want A Handmaids Tale and conversion therapy. Logically, Islam probably isn't a monolith in a similar way other religions aren't.
However, I have never heard about what those of the Islamic faith actually believe outside of the hysterical post 9/11 Islamophobia I've been indoctrinated with as a child.
I want to know what the truth is and hear the other sides story. To me it's obvious that Islamophobia is wrong, however when Islamophobes make wild claims about it, I can't really refute them confidently because I'm simply ignorant of the facts. Please educate my dumb, white ass.
In 610 there is no Quran, no Islam, no Muslims. Muhammad dictates the Quran later in his life, and by 640 there is the Quran in the form we know it today, and Islam, and Muslims, all at once. It emerged very discretely and with relative unity.
For Christianity, there is a historical record of Christians as early as Nero's reign, but the earliest books in what is now the New Testament don't get written until the end of the 1st century AD, and as far as we can tell are not written by anyone who witnessed the life of Jesus on Earth. And then the canon isn't formalized until almost 3 centuries after the Crucifixion; meanwhile, there have been lots of parallel and related religious movements going on that get sorted out by councils of elders/bishops long after the fact. The Old Testament/Tanakh was written by dozens or even hundreds of authors, over a period of at least 700 years.
There might be historical and cultural revisionism going on, as you'd see anywhere, but Islam emerges clearly in a moment, as opposed to Christianity which is the product of much longer and more blurry processes. This makes for much less ambiguity over what Islam does or does not look like.
My experience of Islam largely comes from roommates who had the Quran very thoroughly taught in schools. I got the impression that there's a lot less picking and choosing; it's a package deal that you either wholly embrace or don't.