Yep, and you choose where logseq files are stored, so you can use anything you'd like to for syncing. I will say though, I've tried using Dropbox for syncing with logseq, and it ended up creating a lot of duplicate copies due to conflicts. Have had better luck with iCloud/Syncthing (also, many people actually use Obsidian + logseq, so I believe you can take advantage of Obsidian's sync if you choose to). In any case, having better file syncing is something the logseq devs are currently working on.

Logseq does not currently have templates integrated the way Notion does, but it wouldn't be difficult to programmatically create them since they're just plain markdown files. There's a plugin ecosystem for logseq now, so I think it's just a matter of time before someone writes one to generate templates.