On this page of the ultimate Power Apps user guide I’ve added links to many of my Power Apps posts. I’m happy to add links to any good posts written by others.
If you need help with power apps components then click on the above link. you will find many interesting posts about components and how to use them.
Power Apps gives you a few different options to update data in your app. in this section will read about Patch, Update, updateIf and SubmitForm
Can you develop apps without Power Automate? Maybe.
Often however Flow can help you out when you need to do complicated things within your app.
Your content on the ultimate Power Apps User guide
On this page of the ultimate Power Apps user guide I’ve added links to many of my posts and where other people wanted their posts to be included, you can find them here too