Is lose streaking early game still a good strat or is it always just tempo early?

I haven't played in a couple sets so I'm not sure how much the game has changed. I was also made aware the gold u get for lose streaking was nerfed a bit a couple sets ago

Lose streak questions:

When people lose streak early game do they just save gold and not go lvl 4 at 2-1 or lvl5 at 2-5?

I know with lose streak early start you probably avoid slamming and save your items for BiS but do you ever keep stronger units on the bench to ensure the lose streak? If I was on a 3 lose streak on 2-5 but suddenly hit two 2* units do I put them in or opt to make the 5 lose streak going into krugs?

Tempo questions:

I read some guides that going tempo is the move early game right now. To my understanding that is just playing the strongest board and slamming items right away. In that case do I just slam whatever items that are meta right now? Guinsoo's, IE, Shojin seems like they're in alot meta comps rn and warmogs, sunfire, and stoneplate seems like typical items that any tanks can use so I guess I just slam as such?

How long can I keep my components on my bench for hoping to get another key component on carousel or minions?

Is it worth going tempo even if i win lose win lose and not making any streaks?

Any insights are appreciated, even if it's just an answer to one specific question. Thanks!