A month ago, pollsters Redfield & Winton, with data collected on 2-5 March from 1 050, have:

SNP 40%

SNP Male 36%

SNP Female 44%

Labour 29%

A gender gap of 8 points between male and female support for the SNP.

One month later, as the SNP leadership is settled, Redfield & Winton, with data collected on 31 March – 1 April, from 1 000, have:

SNP 38%

SNP Male 31%

SNP Female 45%

Labour 28%

A widened gender gap of 14 points between male and female support for the SNP.

Redfield & Winton have no earlier polls to compare with but three YouGov polls in the second half of 2022 have no sign of a gender gap like this with support equal or even slightly stronger for male respondents.

While this cannot be definitive as yet, there is a clear suggestion that the SNP leadership change is weakening support among males only.

Source:

https://en.wikipedia.org/wiki/Opinion_polling_for_the_next_Scottish_Parliament_election