Given that the electoral system used in Holyrood was designed to avoid any party gaining a majority, this would be some achievement, whatever you think of their politics, especially given the turmoil in the SNP over the left few years.
"SNP set for MAJORITY in major new Scottish election poll."
[Edit: when I shared this, the article was free to read. It now appears to be paywalled. Here it is free on Archive: https://archive.is/U1IHM ]
https://www.thenational.scot/news/25884581.snp-course-majority-scottish-election-polls/