If u use street cred lvl 2, u will have 2000hp. That alows the andro to 3 shot u if he/she lands only one headshot. Get at least street cred lvl 3 to not get 3 shot by andro. Also move around. It makes it harder for andro to land headshots on u.
If Grohk is using totemic ward, he does have cc immunity against your ult and rewinds, but you can just 2 tap his base totem without buying bulldozer. If Grohk is using maelstrom, your stasis field eats his shock pulse, preventing the spam.
Buck is a mid/good option for dealing with strix, Get illuminate and start searching for him, he can take you out in 3 shots if he can hit you while jumping, be as mobile as you can and use your net to capture him and kill him quickly