onFinalizeWeak.scala

    import fs2.Stream
    val r1 = Stream.resource(Resource.make(IO.println("acquire 1"))(_ => IO.println("release 1")))
    val r2 = Stream.bracket(IO.println("acquire 2"))(_ => IO.println("release 2"))

    val ss =
        r1.onFinalizeWeak(IO.println("final 1"))
        .flatMap(_ => r2.onFinalize(IO.println("final 2"))).evalMap(_ => IO.println("do work"))
         ++ fs2.Stream.eval(IO.println("----")) ++ fs2.Stream.sleep[IO](2.second)
    ss.compile.drain.unsafeRunSync()

acquire 1
acquire 2
doing work
release 2
final 2
release 1
----
final 1