yes. it also prevents attacks. it's basically a necessity these days.

if you host your own stuff and get any traffic you'll get DDoSed by bots. cloudflare prevents this by detaching your DNS from your IP and distributing requests.

just port forwarding on your home network these days... and you'll get dozens of attacks per hour.

the internet is not 'nice' anymore. services like cloudflare are a necessity for any active services beyond personal use. long gone are the days you could host a web server from your bedroom.