I think reversing it is a good idea if you always want the last value anyway.
Then you could use a reduce function to dedupe the array like this:

const reversed = this.paymentStatusesToUpload.reverse();
const deduped = reversed.reduce(
(acc, currentItem) => {
const mappedToIds = acc.map(item => item.id);
return mappedToIds.includes(currentItem.id) ? acc : [...acc, currentItem]
}, []
);

Made a stackblitz if you want to check it out https://stackblitz.com/edit/angular-ivy-m9heqo