What will happen to my benefits if I am on leave without pay on account of my not meeting the attestation deadlines or the mandatory vaccination requirements?

Information regarding the impact LWOP has on your pay, benefits and group insurances can be obtained from your compensation advisor. You may also wish to explore the list of other things to consider when on LWOP here: https://www.tpsgc-pwgsc.gc.ca/remuneration-compensation/services-pension-services/pension/info/ticnp-lwpip-eng.html