When? When is it finally possible to start using flexbox at 100%?

Question

css

Good afternoon dear developers.
For many times I want to start using flexbox, but I still don’t dare. The first time I wanted to about a year ago, but I thought that I would wait half a year and everything would change dramatically, because. web development is developing very quickly, but I was wrong - nothing has changed.
Now they have already begun to actively implement css grid layout, and I still haven’t even used flexbox, which makes me feel like some kind of dinosaur. Am I the only one??? Maybe, of course, due to the fact that we have large projects and picky customers who do not allow the slightest jambs in ie10 - ie11. C'mon, to hell with this ie10 (although its support is still required), but looking at projects using flexbox in ie11, I also see a bunch of jambs, even on large sites like css-tricks and others: the content does not fit into containers, then something collapses, then flies off to the other side, etc.
Can customers and developers really afford such oversights, or have I missed something?
I would like to hear the opinions of those who consciously use flexbox in their projects (please, no offense only, do not write to beginners who don’t care about cross-browser compatibility and who use flexbox in small landings, like "Iphone sale in Muhosransk"). How do you solve problems with cross-browser compatibility? Or just close your eyes to the jambs?
Don't get me wrong, I'm not in any way criticizing flexbox or anyone else. at any moment I would start using flexbox with great joy and I just can’t wait for such a moment, but, unfortunately, I don’t want to start with such jambs, and if you do fallbacks for old browsers, then this is just an extra hemorrhoids - then it makes sense to use it at all flexbox if you still have to write and add code using the old method.

Answer 1

it all depends on the direction of the resource.
Here is an example of a toaster. do you think there are at least 1% of users on the toaster who sit on ie? (not counting those who come in to test "are there any shoals of layout on the toaster")
, so you start from the one to whom the resource is directed.
ps with regards to me - I immediately discuss support for versions ie, andriod, ios, etc. if the design is such that you have to use either flexbox or make big crutches, I will immediately inform you about it. that support will be for example ie11+

Answer 2

When will this question stop coming up? Only here on the toaster there are already a million of them. There are answers there. Turn on your head and search.
All answers boil down to:
When the numbers here will suit you (but everyone is satisfied with different numbers).

Answer 3

caniuse.com/#search=flex with prefixes 97.68% support . Do you think this is not enough to fully use it? If you need support for IE < 10, then use a polyfill . But for me, duck, you need to check the user for flex support and if it is not there, put a stub so that the browser changes. ~2.5% is very small.
For example, you use Border-radius , and it is only supported by 95.04%

Answer 4

https://www.youtube.com/watch?v=GT4HNXpx0VQ&list=P...
Look, I hope this helps you)

Answer 5

From large projects:
Google, Instagram, YouTube, Yandex To
use or not, it is necessary to decide from a specific task. Browser support is approaching 100 percent. There is nothing more to add here.