I want a DataGrid with sortable and re sizable columns, i need to search the web, find something that is compatible and also make sure the license is compatible
I want a basic Dropdown widget that can do basic things like ex have a flag+country name or have a list of fonts where each font is using it's family to be rendered. Also the scrollbars can't be themed for when elements overflow in all browsers so you are forced to find something that reimplements the scrollbars.
When I give example of Qt,Net or Java I include the full SDK , if you did not worked with this kind of SDKs maybe you worked with Android one, basically you have the language STL plus anything you need from file I/O, Networking, Widgets, to the serial ports,screen, and a lot of things, you don't have to package install a new thing for each feature.
All the stuff you mention can be solved with simple libraries, maybe you could push for a library that solves such problems to be widely adopted. But frameworks always bring a new set of problems of their own, which is why no one is ever going to agree on the subject of those.
There is no need that browsers select things that are agreed but 100% of people, it needs to satisfy the needs of a large majority that need to create boring and stabe websited or applications.
For web when I inherit an older project I need to spend a lot of time in finding the correct version of things, like for an older react project it was using an official jsx transpiler but today that package is deprecated you can't just npm install it, so I would have been forced to upgrade the entire build system to use the new thing , but at that moment I had to fix a small thing so I found a hack for the issue and postpone the fixing of that issue.
What I think Web needs is some standard framework, or a framework core maybe jsx or other template thing but something standard to be used in mst projects and for side projects we can toy with the shiny new frameworks and languages.