10:10 wasn't always dominant. Look at some print ads for watches from the 1920s and 1930s. 8:18 was used just as frequently if not more so. It's the "other" time where the hands are balanced and equidistant from the 12 and 6. I grew up (pre-web) having heard (probably from some trivia book) the false explanation that 8:18PM was the time of Lincoln's death.
It is an unwritten(?) convention that all depiction of time should be 10:10. Don't know why that is but I learnt about this convention when a political party[0] in India launched its symbol, an analog clock.
Often, Apple screenshots show 09:41: https://www.businessinsider.com/heres-why-the-time-is-always...