Why is this line marked as error?

[dm-de]

Describe the bug

<script>
	let { array = [] } = $props()
	let array2 = $derived(array.filter(i => !i.hidden))
</script>

In this short example, filter is marked red
'array' is of type 'unknown'.

For example, when I use next code in TS playground, it will not mark array or filter as error. Expected errors are $props() and i. But not arary or filter.

let { array = [] } = $props()
array.filter(i => !i.hidden) 

My configuration:
installed using Vite (fresh installation)
but not Svelte kit
just JS Svelte 5 (newest)
or even TS (no difference)
newest Svelte extension for VS code
newest VS Code update

Such error come up with Svelte 5 first (Svelte 4 show no errors).
I hoped all the time that this will be fixed with final v5.

I played with checkJS - or ts-nocheck.
But this will hide any error.

Reproduction

<script>
	let { array = [] } = $props()
	let array2 = $derived(array.filter(i => !i.hidden))
</script>

Expected behaviour

no error

System Info

• OS: Windows
• IDE: VSCode

Which package is the issue about?

Svelte for VS Code extension

Additional Information, eg. Screenshots

No response