For me, that would be Secure CRT. I have yet to find a terminal emulator that matches its feature set. If you regularly manage hundreds of machines using various connection protocols (serial and ssh mostly in my case) It’s worth the $$$, and so far there hasn’t been any subscription nonsense. I liked using it at work so much I forked over the dough to have it at home.
None of the free alternatives do everything I need.
I’ll also mention a few iOS apps. One is Sun Surveyor. It’s an AR app that shows you the position of the sun, moon, and galactic center at any given time. The other would have to be Radarscope. It’s a weather radar app, but it’s a really good weather radar app.
EDIT:
This one’s debatable, but I use it all the time. Plasticity is 3D modelling software that attempts to bridge the gap between practical CAD programs and software meant for 3D artists like Blender. It’s not cheap considering Blender is free, but it’s buy once use forever, and at (I think) $150 it’s within reach of an individual hobbyist who knows what they want and is willing to pay for it.
I feel you on the UI changes, I’ve definitely noticed the extra clicks, and there is also a bit of a weird pattern when navigating between the main content area and the top bar where the selector wants to go to the left navigation pane.
I still feel fortunate every time I open up Plex that it exists, and I’m sure that their devs hear enough criticism on the internet that I try to leave something positive for them to find. So until the day that Plex operates anything close to the miserable experience that is a Roku in 2026, I’ll keep using it. I maintain perfect metadata and file naming for just that day.