The trouble with online bass lessons is not everyone does them in a clear manner.
You've got one guy who uses gloves which make it easier to see his fingers work against the bass background,
but has crappy cameras and angles that don't really show what's happening at string level.
Got another guy which has the best camera setups giving a view of what/how he's picking and another cam watching the fingering,
but he uses a blond fretboard & light colored body with pasty pale fingers so you can't always make out what he's doing.
If they'd meld together & throw in some Slow-Mo & closed captioning, they'd have the perfect teaching setup.
Then there are guys who meander through their lessons getting distracted all over the place...
or confusing the BLEEP out of you by using technical jargon that no newbie is ever going to understand.
Then there are the ones whose voice is unintelligible or mumbling, or the mic is placed too far away...
and they REALLY need Closed Captioning, but don't have it.
And even In-Person teachers, when you tell them exactly WHAT you are trying to learn to do/learn,
proceed to push you into music theory instead of teaching you the basics of Fingerpicking and Fingering the Fretboard.
I dunno, teach me HOW to play a Chord, then another, then back & forth between those two chords until I get it right...
then add anther chord and work between the three...ya know, BASICS...Jimmy Buffet style.
All in all, it is a total crapshoot...never know what you are going to get until you open a few boxes.
Find out what you like, what you don't, who you want to learn from, who you don't.
Do you really want a monotone teacher that speaks like the guy who says "BUELLER....BUELLER"??
Of do you want a lively teacher who can engauge your mind?
Great thing about the internet is that there are TONS of options.
But a lot of it will be confusing if you can't ask questions during a canned lesson.