Trying eglot, again

I've been using lsp-mode since I switched to Emacs several years ago. When eglot made into Emacs core I used it very briefly but quickly switched back. Mainly I found eglot a bit too bare-bones; I liked some of the bells and whistles of lsp-ui . Fast-forward a few years and I've grown a bit tired of those bells and whistles. Specifically that it's difficult to make lsp-ui-sideline and lsp-ui-doc…