It could, but my site is available via IPFS so I use relative links everywhere in case a gateway is used. For example https://ipfs.io/ipns/kevincox.ca/2022/05/06/rss-feed-best-pr.... That being said with subdomain gateways being widely available now it is pretty safe to go back to absolute links as https://kevincox-ca.ipns.dweb.link/2022/05/06/rss-feed-best-... handles absolute references just fine.

And of course none of this matters much if you have a non-IPNS reference because the feed will never change making it mostly useless.