I was previously a PM at a company where I got to interview a lot of content creators on various platforms (YouTube, Instagram, TikTok, etc). Specifically creators with large enough followings where it was their sole source of income (typically $1K-$10K per month).
I was initially shocked by how few of them had personal websites, but they're able to get by with the tools that the platform provides them. They didn't see much ROI in maintaining a personal site, and were more concerned with diversifying their audience across platforms.
Even where you might once have thought "I'll add my own site, for the true fans, and take in orders of magnitude more money" - Now you can just add patreon (or an onlyfans) that handles that for you far more efficiently.
Then there are more niche providers like Floatplane (the Linus Tech Tips side-hustle/life-boat), who'll give you more autonomy and a CDN.
LinkTree was when the penny really dropped for me. Pretty much just an API landing page to point you to the other platforms.
Maybe the only next step left, is stuff like https://nametag.org/ - using an NFT to be your presence.
It's all very odd, and as I said above, makes me feel very old.
I look at some of the channels I've subscribed to on YouTube - I have absolutely no idea if any of them have a personal website, since I have never had a reason to check.
Personal websites for Youtubers don't really make sense unless they have some kind of format that can't be handled via videos, playlists, or their descriptions.
The only ones I've seen for Youtubers are cooking channels, where the description format is very poor for recipes.
I only stopped checking the websites of a couple YouTube channels I follow, because they stopped updating them reliably. I preferred that to checking on YouTube, because sometimes it takes me a bit to find a simple chronological list of videos from a channel, while the sites were just that, right on the front page.
Sharing this experience. Having a few friends who have small gardening or construction businesses, but none of them have a website. If I ask why, they tell me they already have too much work. A website or any kind of marketing on top of mouth to mouth would only add on top of that.
I was initially shocked by how few of them had personal websites, but they're able to get by with the tools that the platform provides them. They didn't see much ROI in maintaining a personal site, and were more concerned with diversifying their audience across platforms.