Questions regarding Evilnat 4.89 and syscalls

Do I need PSN Patch to disable syscalls or I can use Evilnat for that? If I try to sign in to PSN will Evilnat block the access? Does it disable syscalls on boot like PSN Patch's plugin?

PS3 - OFFICIAL bguerville's PS3 Toolset v1.2.004 Update Now Live - Supporting 4.89 + NEW Features, Page 2

PS3 - CFW RELEASED - 4.89.3 Evilnat (Cobra v8.4) Official debut of PEX (New PS3 CFW type) + Other flavor's

PS3 - CFW 4.89.3 Evilnat Cobra (8.4) (CEX/DEX/PEX), Page 42

PS3 - CFW 4.89.3 Evilnat Cobra (8.4) (CEX/DEX/PEX), Page 2

GitHub - PS3Xploit/PS3HEN: PS3 Homebrew ENabler [Supports 4.80 - 4.82 OFW / 4.83 - 4.90 HFW]

PS3 - CFW 4.89.3 Evilnat Cobra (8.4) (CEX/DEX/PEX), Page 22

How To Jailbreak Your PlayStation 3 (PS3) On Firmware 4.89!

Help: Still on 4.84 CEX but need to buy stuff on PSN for preservation

How to update PS3 4.89 Evilnat and Fix After install Webman mod

PS3HEN v3.2.2 (4.90 Support) - Official Release Thread (Homebrew Enabler for the PS3), Page 193

Rebug 4.84.1 LITE with Cobra 7.55 PS3 CFW and Toolbox 2.02.17, Page 3

PS3 Homebrew Archives - Hackinformer