[HOLD for payment 2024-01-18] Fix FlatList jumping

[roryabraham]

Part of the Comment Linking project

Main issue: #20282
Doc section: https://docs.google.com/document/d/1v-ZaIRTZL5LIsyPWB0IopBNNgCajf5WC1OA8cVKtd8I/edit#bookmark=id.bry74gx446k1
Project: Comment Linking

Address the noticeable jumps in the list when scrolling and simultaneously adding items from the bottom of the list. This fix will be applied on both native and web sides.

Manual Test Steps

TBD

#Automated Tests
TBD – probably none

[roryabraham]

cc @perunt

[perunt]

Here we go! 🚀

[perunt]

I re-tested this with a large dataset, and I can confirm that it's now sliding significantly less. I noticed that in version 0.72.1, the react-test-renderer was removed from the runtime, which seems to have improved things. When using a single item render per batch, it functions kinda ok(similar to previous performance levels). As such, I don't believe we need to make any changes here. And we can hop on the next steps.
Here video
@roryabraham , wdyt?

[roryabraham]

Sounds good. Hopefully we'll get much better performance (and no scroll-jumps) when we integrate WishList

[melvin-bot]

Reviewing label has been removed, please complete the "BugZero Checklist".

[melvin-bot]

The solution for this issue has been 🚀 deployed to production 🚀 in version 1.4.24-3 and is now subject to a 7-day regression period 📆. Here is the list of pull requests that resolve this issue:

• HIGH: (Comment linking: step 2) [23220] WEB maintain visible content position #32098

If no regressions arise, payment will be issued on 2024-01-18. 🎊

For reference, here are some details about the assignees on this issue:

• @perunt does not require payment (Contractor)

[melvin-bot]

Skipping the payment summary for this issue since all the assignees are employees or vendors. If this is incorrect, please manually add the payment summary SO.

[melvin-bot]

@perunt 10 days overdue. I'm getting more depressed than Marvin.

[melvin-bot]

@perunt 12 days overdue. Walking. Toward. The. Light...

[melvin-bot]

This issue has not been updated in over 14 days. @perunt eroding to Weekly issue.

[perunt]

Hey, it was merged a while ago. There will be another enhancement for the scrolling experience, but the original issue has been fixed. I guess we can close it