There is no such thing as a global trademark registration. There are a couple of commonly used procedures and approaches to securing international trademark coverage, including filing individual applications in countries of interest or the filing of an application for international registration pursuant to the Madrid Protocol which Canada entered in mid 2019. The Madrid Protocol provides a streamlined international filing process.
It is also possible to protect your trademark on a regional basis in certain areas of the world, including in Europe for example.
Planning for protection of your trademarks in foreign jurisdictions as you expand the geographic footprint of your market is important in your overall business plan.