On the topic of typescript - yes. However Bun has a lot more tools baked in than Node does at (bun test for instance). Would be real nice to see Node start adopting more ideas from Bun and others.
I find it interesting that everyone looks at Bun and shames Node saying they need to catch up to Bun and implement stuff Bun has but Node doesn't, yet nobody is like Bun should catch up with feature parity of Node. Node isn't trying to replace Bun, Bun is trying to replace Node so it should be the one who needs to match parity.
Bun is doing that - every update usually has node compat fixes or improvements and the list of supported modules has gone up significantly since it was released
node has a built in test runner now
https://nodejs.org/api/test.html