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Ok, So I have taken it step by step:
remove config from eno1 - All good
add VLAN on eno1 with VLAN ID: 35 and External/DHCP - All good
Change VLAN (eno1.35) to PPPoE with correct login/pass and MTU - errors start to accumulate
/etc/sysconfig/network-scripts/ifcfg-eno1.35:
/etc/sysconfig/network-scripts/ifcfg-ppp0: -