If we ignore the actual stress of a manager suddenly finding out and asking you to report what you have been doing. Probably still possible to bullshit long enough in a big company to recover a normal situation or find another job.
This is why you shouldnât get rid of all your work. Keep a bit and make it immaculate. If they ask why you havenât done more, just say ânobody asked me to.â
Problem with that approach is that they will argue that if you didnât have enough work to do, you should have asked for more. OP knowingly slipped through the cracks to, so the argument of âI donât have a line manager to give me anyâ probably isnât going to cut it as their work will argue that OP shouldâve gone to HR to sort their responsibilities as soon as they were aware.
I donât know what kind of fucked up country you live in, but in my the employer- employee relationship means that the employer dictates what work you do and when, so if they donât give you anything to do thatâs on them.
Going further even better if you are self employed and on a cintreact thats fix rather than hours based, they have even less of a case, contract says you will charge x amount every month, if they donât contact you with any issue thatâs on them.
They might get fired but no one has to âseekâ extra work, thereâs no legal obligation. If they do their simple existing task, they are meeting known expectations.