Well, I am still using Firefox. Have been using Linux for a while, but got myself a new Laptop one year or so back and it came with Win10. Am not bothered with changing that.
I dropped Apple products a couple years ago. IMO, Apple today (or since a few years, basically when they declared the I-Phone to be their Alpha + Omega) Apple is a shittier company than Microsoft ever was (regarding "ethics" - of course, it's capitalism where the only profit counts). It's just I don't wanna be ripped off in the end.
I rarely buy books or recorded media anyways much these days, however I (partly) substitute amazon with ebay. I search a certain product on amazon, do the same on ebay and simply buy the cheaper offer. Often, it's being offered even by the same shop (however a bit cheaper on ebay).