I think the general consensus is that shavettes are generally more aggressive less refined, the disposable blades are run off the factory line very very sharp and rough, whereas proper straights are carefully ( hopefully) honed by hand then stropped on things like chromium oxide & linen/leather which results in a smoother more gentle shave ( more forgiving),
But shavettes are great for learning angles and technique and are also great for people who like things easy, no stropping no honing no maintenance so are a great start, every barber in the country uses a shavette for their " straight razor shave" as the strict hygiene rules dictate this.
Give the shavette a go but just use a very light touch, but you really owe yourself the chance to shave with a nice straight down the line and before you know it you will have many!.