It is possible to get an RSS feed from YouTube channels and playlists, this page will provide you with the necessary details.
I've made a demonstration video for this: https://youtu.be/vdk8dx08ExU
In order to find your RSS URL you need two parts, the first part, which is the common URL for channels and playlists and the second part, which is the ID of the channel or playlist The ID is the final string of numbers and letters at the end of a channel or playlist URL.
https://www.youtube.com/playlist?list=PLyga2RDU50AO0gtBXwk3c_2aEI5hMUvbc
Some channels can also use a username as a suffix here. This only applies to older chnnels that have username based channel URLs. Whereas not all channels have username based URLs, all channels have a channel ID, just make sure not to confuse the username with the channel ID.
The channel ID prefix URL for RSS:
https://www.youtube.com/feeds/videos.xml?channel_id=
The username prefix URL for RSS:
https://www.youtube.com/feeds/videos.xml?user=
The playlist prefix URL for RSS:
https://www.youtube.com/feeds/videos.xml?playlist_id=
Simply add your relevant channel ID (in this example it's UCAPR27YUyxmgwm3Wc2WSHLw), playlist ID (in this example it's PLyga2RDU50AODdcN9aIkg4rXwxS-174uW), or username (in this example it's ChrisWereDigital) to the correct prefix above and you should have the RSS URL for your YouTube channel or playlist. Most people will want to use the channel ID as the username suffix is from legacy usernames and not the current system of TikTok style @handles.
The channel ID URL:
youtube.com/channel/UCAPR27YUyxmgwm3Wc2WSHLw
The channel ID URL for RSS:
youtube.com/feeds/videos.xml?channel_id=UCAPR27YUyxmgwm3Wc2WSHLw
The username URL:
youtube.com/user/ChrisWereDigital
The username URL for RSS:
youtube.com/feeds/videos.xml?user=ChrisWereDigital
The playlist URL:
youtube.com/playlist?list=PLyga2RDU50AODdcN9aIkg4rXwxS-174uW
The playlist URL for RSS:
youtube.com/feeds/videos.xml?playlist_id=PLyga2RDU50AODdcN9aIkg4rXwxS-174uW