I lost my last permanent job in London at the end of 2008, at the beginning of the financial crisis in the UK. I applied for about two thousand roles in 2009 alone, and from 2008-2013, about 3,500 roles in total... In about 6-8 countries in multiple disciplines. I averaged 30+ applications _per day_ at first... and 1 interview per year. From 2009 to 2013 I got 2 months of paying work in total. Reason? I think it's be…
Reason? I think it's because I was 41 when I started. The implication of your post is that the hiring managers responsible for 3500 jobs are *all" discriminating on age. That seems unlikely, if only because there are people in the UK tech sector older than that who can still find roles, so evidently not all managers discriminate.
It is endemic in the Anglophone world. I also speak a little German, French, Norwegian and at a push Spanish and Swedish, and I applied to anywhere that was hiring English speakers there, too... with cover letter in the local language, naturally.
Zero interest.
So I think it's a Western problem.
Q.v.
https://techcrunch.com/2010/08/28/silicon-valley%E2%80%99s-d...
https://newrepublic.com/article/117088/silicons-valleys-brut...
I encounter virtually none here in the former Communist Bloc, where people are more interested in me because of my experience.