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uYouPlus
uYou+ is a modified version of uYou (made by @MiRO92) with additional features and mainly made for non jailbroken users!
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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
Check out their FAQ, that should be enough to get you started
For Android, I would recommend New pipe over YouTube Vanced. It's open source, you can download videos, play music in the background and doesn't require a Google account to access your subscriptions so it's better from a privacy standpoint as well.
Android: YouTube Vanced
You have to be joking. Brave is literally a broken ad tech business model which only goes downwards. There is no reason to use this crappy fork when ublock origin on a clean Firefox is safe and secure. You can't get it better than this. There is a huge community of people behind ublock which don't want to show you ads, your attention or you money. There is no reason at all to go for Brave.
I don't think there's anything native for PlayStation, but if you want to go war against ads on your home network you could make a one-time purchase on a Raspberry Pi & set up Pi-hole