Your application will NOT be rejected just based on the fact your wife doesn't have a job or savings! There is no income requirement. She does have to prove her intent to support you, so this can be with a letter explaining her situation and how she intends to support you and a few documents.
Personally, I would think that's fine to transfer money. In fact, showing financial interactions between the two of you is a good thing as it can add to the fact that you are in a genuine relationship. It doesn't look weird at all that a husband and wife transfer money to each other but there's no need to transfer an annual salary's worth!!! Transferring a few thousand looks ok but 20,40,60 thousand dollars at once will look a bit strange. Better yet, have her add your name to one of her bank accounts to prove shared financial accounts and proof that you are both living at the same address and transfer some money into that account. That is what me and my husband did and we included a bank statement showing our joint account and X amount of money in it.
These would be my suggestions (just suggestions as there is no income requirement for sponsors and no objective supporting documents required):
I myself am sponsoring my husband and I do not currently have a job and we are living at my parents house. These are the things we sent in as supporting documents to show I can support the applicant:
- Letter written by me (the sponsor) explaining my job/financial situation and details on how I intend to support my husband i.e. family support, savings, job searches, buying health coverage for him etc.
- Bank statement showing joint account and $ in it
- Resume showing my skills and how employable I am
- Print out of 3 jobs from a job search that I can apply for showing that jobs are out there in my field
- Letter written by my parents saying that they are willing and able to provide support in the form of accommodation, food, utilities, etc.
The important piece for you will be the letter written by your wife explaining her situation (covid issue) and how she intends to support you (plans for future jobs/financial stability/income details from previous job). Another important piece that you see used a lot on this forum by people in similar situations is the letter from a family member who can help financially or through accommodation.
Don't forget that the statement by IRCC isn't just about finances, it states support in terms of health care, basic living needs, accommodation. So if your wife owns her home, has furniture bought for you guys, a vehicle, has purchased health coverage for you, etc. put those things down in that letter as well. I included one paragraph detailing these "other" forms of support that I can provide my husband.
Once again, I will say, that these are only suggestions as it is not required. But at the very least a letter from her explaining her situation and how she intends to support you is a must.