..k8s is buzzword bullshittery?
Look, there's a bunch of bullshit hype, but I think you're being overly reactionary.
Plenty of devs will never touch a profiler (as complex as a cloud based APM simple as jfr), that doesn't mean they don't have use.
Plenty of buzzwords conflated hype and misunderstanding with useful technology
'nosql'-> yeah don't try to do olap on nosql but document databases or kvs are still super useful. It's basically a hashmap with some index what's not to like (also using 'nosql' as a term to differentiate between relational databases and ...non relational is already a misnomer)
'big data'-> stupid hype at the beginning and yeah you can have a functioning product without it but try leading a business without any data to make a decision
'cloud'-> colocated data centers and timesharing have been useful things for decades but man do I love having an API to formalize it rather than calling up the onsite data tech and having a phonecall to do anything (that or a multi day email chain)
'microservices'-> yeah it's intractible if you atomize your app, but splitting application boundaries and defining contracts makes it a lot easier to horizontally scale, and it's cheaper in the end of you do it right. Also functions as a service are great for glue code and infra IMHO.
The longer I get in my career the more I see that wading through the bullshit is needed to know wtf I'm talking about. It's similar to science communications, where the actual researchers will figure out something cool and useful but situational and contextual, and then the zeitgeist completely distorts the findings beyond any measure of recognition