CPP Disability wait time - Your experience

I wonder though.
If you have spare money to invest, it can grow tax free.
Other people can contribute to it.

Yes but as far as I can tell the income is 100% included in income instead of getting the 50% capital gains inclusion rate so you may end up paying more taxes eventually, especially if you have other sources of income.

I can’t seem to find the answer/clarity anywhere either. What if you only withdraw the Basic Personal Amount + Disability amount ($22, 470 for year 2021)…from what I have read so far there is no tax withheld at source but let’s say this is on top of your CPP payments + LTDI payment then do these withdrawals push you into a higher income bracket?