Need help with the sentence structure for my pitch, thanks!?

Question

Back story: I am to give a 3 minute pitch on a task i worked on. I would like to something like, "**As a general knowledge, we know that smartphones are dominated by IOS and android. Which is why working on these operating systems are important**" *Something like that...* But i don't know if i have to give like a solid quote from a credible source or i can just throw the word "allegedly" in there. Please help me with constructing this sentence! Thanks and with Love, English newbie <3

Answer 1

What about, Because the smartphone market is dominated by IOS and Android, knowing how to work on these operating systems is important.