How likely sample variance bigger or smaller than population variance?

• In this lesson, we've been taught that sample variance is bigger than population variance, then this get me thinking if this always the case, like 100% always. So I did some googling, and found that people been asked these similar questions but totally opposite views, which confuse me even more:
• Why is the sample variance always smaller than the population variance?
• - https://www.quora.com/Why-is-the-sample-variance-always-smaller-than-the-population-variance
• - https://math.stackexchange.com/questions/3270153/is-sample-variance-always-less-than-or-equal-to-population-variance#:~:text=The%20article%20says%20that%20sample,calculated%20using%20the%20sample%20mean.
• Is sample variance always larger than population variance?
• - https://www.r-bloggers.com/2021/12/sample-and-population-variance-in-r/
• - https://homework.study.com/explanation/why-are-your-estimates-of-the-population-variance-and-standard-deviation-always-larger-than-the-corresponding-values-that-describe-a-sample-from-that-population.html

Can anyone enlighten me in this matter please?

Thanks in advance,