I'm old school I guess. I keep a manually-curated index.html file that my browser uses as it's homepage on my desktop at home. I've grouped together types of bookmarks and have a few hundred URLs saved (~600 or so). Mostly YouTube creator pages. I generally search for stuff when I want to go somewhere new, then save the bookmark if it looks like I might need it often.

This works for me because I don't try to sync the file. I don't browse on my phone much because I hate typing on one, and I keep work and home separated.