I want to run all workspaces one by one.

Can you elaborate why?

I think current order is slower tests first with the rational explained by https://vitest.dev/config/#sequence-shuffle.

Vitest usually uses cache to sort tests, so long running tests start earlier - this makes tests run faster.

I think you (or we) can technically overrides order by custom sequencer https://vitest.dev/config/#sequence-sequencer, but not running sequentially is intentional (as per slower tests first is faster overall) I think.