What about approaching it from the other direction, where instead of trying to physically inhibit the thing you don't want to be doing you aggressively fill your schedule with things you _do_ want to be doing instead?

What do you want to do instead of digital media consumption? If you do more of those you'll naturally have less time for browsing.

For me, that's been taking up the following (the specific items change with time, but when I notice myself spending more time mindlessly scrolling it is a good reminder that I need something else to keep me busy):

* Running (with race goals) - doing this 4x a week sure takes up a lot of my time.

* Physical meetups (local philosophy groups, museum events, actively scheduling coffee with friends, etc)

* Crafts (cross stitch - started when I took on an ambitious Birthday gift project for my boyfriend and now it's kind of a meditative experience)

* Studying (part-time university course where I have to read a paper and complete a study guide once a week)

Those four things, along with full time work, don't leave much time for mindless scrolling unless I intentionally want to just chill and schedule a block of that in (and I don't feel guilty about doing that anymore because with all the other stuff enriching my life I feel there's nothing wrong with some occasional browsing).