One reason for that might be wanting to use the same browser across mobile and desktop though. I know I stuck with Safari for a while because of that.
I'm now on Firefox for both Mac and iOS but the iOS experience isn't that great.
Once other browsers are allowed on iOS, it's possible more users will migrate on both desktop & mobile to Chrome/FF.
Did you actually read the article you posted? It states that 79% of sites are using PHP. WordPress is 40%, Joomla 2%, Drupal 1%. So no, they don't combine to ~90% of PHP sites, far from it!
The article even concludes with:
"PHP is far from dead, no matter what any disgruntled developer may tell you. After all, 79.2% of all websites in the world can’t all be wrong, and most importantly, PHP’s market share has remained relatively steady throughout the last five years (oscillating between 78–80%). Few programming languages command that type of staying power."
PHP powers a lot of legacy code bases, yes. But there are also a lot of job opportunities in Laravel and Symfony which are both very good frameworks.
I've seen this mention between comments and the article, but there is such an option! Or am I thinking of something else? If you go to "System Preferences" > Mouse > unclick "Scroll Direction: Natural".
Am I missing something?
Unless they've changed it really recently you can't have a mouse scroll "unnaturally" and a trackpad "naturally". They're tied together for some reason. You need a 3rd party utility to it.
I haven't seen this talked about in the comments so thought I would mention it: depending on where you're from and where you're planning to go, you could try a Working Holiday Visa.
Not all countries are part of this program and the ones that do all have their own requirements (usually there is an age limit of < 30 years but this can vary). So have a look if the country you're from supports the program and if so which countries you could go to.
The big advantage if you can get it is you get a one year visa without the need of having a job or anything before going. You can then just fly over to the country, find a place to stay and search for a job while there.
As others have said I would recommend Ireland. I spent 3 years working in Dublin after I graduated and it was the best time of my life! Irish people are very welcoming and you will find a job fairly easily (although your first one could be a tech support / very junior role). Biggest issue of Dublin is the housing market is a disaster at the moment so don't expect to get your own 2 bedrooms apartment. Although that's mostly a Dublin issue, but that's where you would get the most jobs in the country.
There are other countries too where you could find english speaking jobs (Netherlands, Germany...) but you would still probably need some basics in the local language for day-to-day life. Ireland doesn't have that issue obviously.
It's a bit ironic to criticize Apple's mobile solution via an app built by its direct competitor.
Google made the choice of not implementing backups for Google Authenticator, so that's really on them.
I would recommend Authy for 2FA. It supports backup straight out of the box.
Once other browsers are allowed on iOS, it's possible more users will migrate on both desktop & mobile to Chrome/FF.