I'm a big fan of vanilla WordPress, especially the new block editor, but the plugin ecosystem is a total mess. Almost all popular plugins come with a free version that spams you to upgrade to "pro". They add menu items to the admin panel with different colours so you find it harder to ignore them. They add messages to the dashboard. The look and feel of their settings pages don't match WordPress core. And, even if you pay for an upgrade, that usually means removing the plugin provided and automatically updated by WordPress.org and replacing it with a manually uploaded zip. Crazy.
The garbage user experience with most plugins led me to collect together a bunch of ideas from plugins I used and rewrite almost all of them entirely into one spam-free plugin. I did it for my own sanity as a user of my own plugin but I'd like to see more " old fashioned" plugins that are providing high quality code for everyone's free benefit.