There are plenty of replacements for all of those except Android. Multiple browsers, various mapping companies (including OpenStreetMap), multiple email providers, multiple browser vendors.

There's also Bing, and the various ancient abandoned former greats of search: Altavista (now Yahoo), Lycos.

Pretending that things come close to the richness of features in GMaps is ridiculous. Topographical maps for cyclists, amazing transit maps with descriptions of stops, reliable use internationally (google maps is still amazing in places like Indonesia) and a generally good list of hours, restaurants, queries like 'near me'... I think that other products are far and away worse every time that I am linked to them.

Even people on HN who mention trying to use other search engines talk about having to frequently come back to google to find the result that they need. Whether that's us 'learning to Google' or Google being a superior product is up for debate.

Not sure if you noticed, but all alternative search engines, like Bing and DDG, are absolutely terrible in Europe. And this isn't an overstatement.

There are already working search engine alternative, from Qwant to bing. One can definitely live without google as a search engine.

Replacements exist for all of them.

search: bing, yandex, baidu, naver

email: fastmail, hotmail, yandex email

maps: bing maps, nokia maps, open street maps (or whatever the collaboration is called)

browser: firefox, etc