I've done the same on Android since about six months ago. No browser, no play store, no social media apps. It's frustratingly hard and technical to remove these, and it shouldn't be. No problem for anyone here I am sure, but most people would find it too hard and give up.
Next I noted what still kept my attention on the phone and removed everything it all. My email client, ChatGPT app, all the games like solitaire. They all went.
It's great. I still spend time on HN, Reddit, and Facebook, but much, much less. And as soon as I leave my home office, I'm disconnected from all of it. I am pretty sure I will never go back.
I've replaced it with my ereader and a note taking app on my phone. Most of it went totally unnoticed and painlessly, the biggest cognitive issue I noticed has been my desire to research things when I am out and about. But I use the notes app to keep a list of things, and then I research them more fully and mindfully when I'm at my laptop.
Note that I definitely do spend more time on these websites on my laptop than I would have before. But the overall time I spend is way down, and that's good enough for now.