What a person has trouble with will vary from one person to another. I'm 10 weeks, 1 day out now. I was released to eat anything my sleeve could tolerate. At around 8 weeks I had some salad and my body rejected it. I tried it again in my 9th week and am fine with it now. I also tried a little bit of bread in my 8th week primarily to know if I could eat it. I did fine with it but haven't had it again as it takes up too much space that I need for Protein.
I haven't tried steak as I don't like it so I cannot give you my experience there. I have tried a variety of other things and haven't had issues with any of them. Some of them, like chicken that isn't shredded, sit heavier than others but I am still able to tolerate them.
If I can suggest something to it is is to try one new food at a time at a certain meal. That way, if you have issues you know what is causing them. Then, once you've tried a certain food and done fine with it in a prior meal you can have it again with something new with it. Does that make sense?
Good luck to you!