As a Canadian IBM'r who was RA'd last year (2020) I advise all the new 2021 RA folks on this thread to get a good lawyer. IBM will do the notice period BS and try to keep you working until your end date (see a lot of April 2021 on these notes). Then it will low-ball you on your payout. You can job hunt during your notice period and you are most likely entitled to more.
IBM Canada senior management got directed by the US to eliminate reasonable packages years ago, now they are trying to bully folks with rubbish severance packages. We are lucky there are at least some protections in Canada, but get legal support as IBM will not deal with you unless you have a credible lawyer representing you.