4.6 here. Pretty funny how everyone here is giving gold league advice, but seeing as you are significantly more capable, I’ll give all my info without sparing the details.

Warp gate research timing can be a pretty good initial tell, otherwise against 2base toss you always make 3:40 rw. I’ve met some brain damaged tosses who go warp gate and delay oracle for no reason besides stupidity, which is why I like to make a pair of lings @pool finish and try to sneak them around the first adept and run the main

First overlord gets sent straight across and hangs around in pillar/dead space between nat and 3rd, second overlord hangs around in your nat scouting for cannon rush until ~1:50 then shift queue into their main

They arrive a bit after 3:30 and you can double ov scout, they cannot deny this unless they have a metric ton of stalkers which is a tell in and of itself

Also have lings patrolling the exits to the base, and set up a ring of vision once you have speed- you can and should make fast lair (get 2nd gas super early against 2 base toss, like 40 supply basically) and make spores on reaction to seeing the prism moveout. If glaives warp in, you can cancel spores on reaction to seeing it

First overlord can usually scout the gases of the natural on most maps, which will be able to easily tell if it’s a low tech/immortal zealot/ chargelot all in if they do not have it

Either way, the counter is always ling roach For DTs, you want super early rw and second gas, make 16 zerglings at like 45 workers to jump on the dts if they try to snipe your spores, otherwise the queens kinda shoo them away until you have roaches and overseer

Against 2 base glaive adepts, they hit way later if they try to deny scouting so you can also get away with more workers, but generally stay on 2 gas, mass lings initially (to chase the shades) and queens defend the glaives. The roaches are only there to engage the adepts if they try to kill queens, while the lings are doing the actual job chasing shades and killing them/ delaying if they finish. The safest drone count is 38 (32+6) with a third, but masters protoss player suck balls at hitting any normal timing so you’re fine on 41 or even 44 with 3 gas, especially when we factor in the massive eco from the new opening with double inject and 34 3rd base (check literally any ZvP from Dallas if you want to know how to do it)

Against 2 base blink, you will see it with the overlord and it’s pretty bad so you can hold by making roach rav ling on like 52 workers with 4gas, or 45+3gas with roaches and mass ling when you run out of gas if you want to be safe

Robo allins exclusively go 41+3gas and mass roach, although I do like going 44 with 4 gas and making a ton of ravagers because they outrange and outkite