Carryover evaluation: Grid

[foolip]

Let's evaluate whether to continue the Grid focus area in Interop 2024.

Original proposals:

• Compat 2021 carryover #2 by @chrishtr
• Update grid/flex test-suites for 2023 #242 by @bfgeek

Tests:

• All tests
• Failing tests

We should also consider whether we should add tests for 2024.

[jgraham]

I think we should be aware that https://wpt.fyi/interop-2023?feature=interop-2023-grid shows basically zero change over 2023 so far.

I'm not claiming that means we shouldn't carry it over — its certainly an important feature — just noting that this seems like a case where being in Interop 2023 doesn't seem to have had much effect yet. Maybe it will by the end of the year.

[bfgeek]

FWIW see see many Firefox specific failures related to: https://bugzilla.mozilla.org/show_bug.cgi?id=1300366 still (and a number of the testcases in this suite are related to this).

[foolip]

For survey data and web developer demand, in preliminary results from State of HTML 2023, Grid was a somewhat common response to the freeform question "Which existing HTML features or browser APIs are you unable to use because of browser differences or lack of support?"

To answer Grid was to ignore the scope of the question, but it says something nevertheless.