Related #28340

part of rhe problem is the missing flexibility in define colums for the form (parent form) itself.

Please test PR #32422

Hi @Quy , I have looked at this PR (#32422) and it doesn't solve this issue. This is merely a work around where extension devs need to specifically style out-of-the-framework fields for use in Joomla. Fields offered by the framework should work correct on any breakpoint provided by the framework.
Doing it this way is one step closer to doing it all ourselves (and create out own interface / styling). That could be a choice, but that is not why i choose a framework.

Does this make sense?

create subform with layout="joomla.form.field.subform.repeatable-table"
resize window
Expected result
subform adjusts to window size

You have to use layout="joomla.form.field.subform.repeatable".
Do not expect table to do more than table can https://developer.mozilla.org/en-US/docs/Web/HTML/Element/table

Other way, is to make new "table like" layout.

@Fedik quick question: will that also work on J3? because if not then there is an issue as extension / plugin will not work on both versions.

I guess will not, but depend how it will be implemented, if it even will be ?

@Ruud68 Please test PR #31567.

@Quy #29241 (comment)

@Ruud68 #31567 is a different PR.

@Ruud68 #31567 is a different PR.

goodmorning to my self #lol... will test when I have time to setup environments again, stopped development and testing of anything J4 related until RC is ready.

tested on nightly (2021-04-23) + PR #31567
not fixed:

Ideally, the Subform should switch to the non-table layout on narrow screens
See this: #35142

This issue is still present in Joomla 4.0.3

Please test an alternative layout #42347