Where does it say you have to leave for 6 months and then come back? You can apply for visitor extension from within Canada.
Also you can travel for a few weeks and most people haven't had issues. Now if you leave for more than a month they will ask questions
How long can I stay in Canada as a visitor?
Most visitors can stay for up to 6 months in Canada.
At the port of entry, the
border services officer may allow you to stay for less or more than 6 months. If so, they’ll put the date you need to leave by in your passport. They might also give you a document.
If you don’t get a stamp in your passport, you can stay for 6 months from the day you entered Canada or until your passport expires, whichever comes first.
If you need a stamp, you can ask a border services officer for one. If you arrive at an airport that uses
primary inspection kiosks, ask the border officer after you finish at the kiosk.
If you want to stay longer than your authorized stay, you should
apply for an extension at least 30 days before the authorized end of your stay.
I contacted IRCC and they informed me that it’s the normal time line for visitor visa holders not to entry with in 6 months since they left Canada. There is no issue in coming back within 6 months, but your stay will be short probably a month since this time the CBSA officer will grill you with questions about re-entry and the purpose of coming back and this time they would provide a stamp on the passport with a date. The date would suggest the individual should leave the country within that date. The 6-month period is not mandatory but if you do decide to come back with in few weeks you need to have a valid reason and you should be able to satisfy the CBSA officer that your trip is legit