Being the strictly plain text/Markdown kinda guy I am I've always resisted the move to the block editor in WordPress (aka Gutenberg) but have been curious about it for a while.
I decided to take a quick look earlier but my theme (a highly customised version of an old, old Automattic offering) isn't compatible with blocks.
I could probably make it compatible but think it wouldn't be worth the effort and I've yet to find a clear and concise guide to building block compatibility into existing themes. I could also move to a newer theme with compatibility built in but would then have to spend far too much time and effort reintroducing all the indieweb elements.
Again, it's just not worth it.
So, as the old saying says, if it ain't broke...