Otter Browser it's uber light, but for proper support you might need to build it against the qtwebkit/qtwebengine plugin (I can't remember, but one of the two engines was the most modern one). If not, I have Dillo+MPV+ytdlp/streamlink for video sites. More than often if you works. Also, I have gemini://gemi.dev (Dillo plugin) for the news sites tunneled over Gemini and some nice Gopher sites such gopher://magical.fish and gopher://sdf.org