I maintain that post rework saryn is one of the most useless frames in the game. There is nothing she does well outside of clearing the starchart. Nah she can get ridiculously high killcounts which in turn is good for leveling.
Her spore spam is only good if you build a gimmicky gas weapon to go along with it, it requires deep knowledge of knowing how she works. Most people dont know that her spores transmit all toxin damage not just spore damage, so building her is unusual and she's highly dependent on things beyond just her build.
You actually don't need a gas weapon as much as you need something to pop the spores which in turn spreads, its just that gas allows that and more toxin related damage to infect multiple targets. A gas build is just another elemental build and for some weapons you can have yet another element on it if you want. Also you just need to know that spores is were its at with her since all the other moves interact with it so try to let everyone have it anyway you can "shrug*.
Not to mention she's energy hungry as all hell and not durable enough to do a melee build for her 3 to shine. Not really if you mainly stick to spores which is her bread and butter anyway. You can add the others for good measure and also have a high energy pool so you can do it for a bit longer. If she has no energy i could see it as an issue but that's with every frame though
She's a mess of a frame and I've tried many times but I cannot get her to work functionally in a way that makes me go "this is better than anything else i could have picked" in sorties. Plus her kit just isn't fun.
Sorties ain't the end all or be all though and even then she can be used in them if needed. Also i disagree about her kit since its fun infecting a bunch of people and seeing numbers all over the map, but that's just me.
I just have a huge bunch of issues with her. And this is coming from some one who had normal saryn as one of my most played frames for the longest time.
I had used her for a bit before and it was fine nuking things with her ult but i'm not seeing much of a difference except instead of 4 its now 1 being used as a mostly a crutch. If there is one thing i would criticize about the rework it would be that
Edit: there is one thing she's really good at though, getting lots of focus. I will agree but i dont use her for that since i don't give a shit about focus so its a moot point