Too long for a comment:
If I were you I would consider paying for a faster decision on your spouse visa application.
Using the ‘priority service’ means you’ll usually get a decision within 30 working days for Family visa applications from outside the UK. It costs £500 in addition to the application fee.
Using the ‘super priority service’ for visa and settlement applications means you’ll usually get a decision by the end of the next working day. This option costs £1,000 extra.
It can take longer to get a decision, for example, if the Home Office needs to ask you for more information.
If the decision takes longer, you will not usually get your money back. Find out about getting a refund of your priority service fee.
Note that Canada’s maximum Youth Mobility visa allocation for 2023 was 8,000. I don’t know what the 2024 allocation is, however it seems possible you may qualify for, but not be able to get, a YMV if the allocation has been filled. As to whether applying for a YMV rather than a spouse visa is advisable, since the stakes are high and a refusal might make your future plans harder to achieve, you might want to get advice from a qualified Immigration adviser/lawyer