root account chmod Operation not permitted on ESXi 7

for my ESXi 7 host

[root@localhost:/tmp] chmod 755 /etc/init.d/xorg

chmod: /etc/init.d/xorg: Operation not permitted

it looks like a new security feature on ESXi 7, since i can chmod on ESXi 6.7

my question is "is it possible to disable this kind of feature ?"

i disabled the vmx sandbox, but it still can't chmod