I've been using Mighty for about a month and it really is incredible and, at the same time, kicking myself for not following through with a similar idea I had years ago! It was an effortless switch from Chrome/Brave/Chromium into Mighty.
Leveraging Google Workspace, Zendesk, Miro, Trello, etc. within my organization, my mid-tier 2020 (Intel) MBP was struggling and was nothing but a jet engine for 8 hours a day. Now? Silence for ~6-8 hours depending on local workflows like Adobe, CAD, and others.
The computer was brand new and already felt sluggish from all the browser weight. Mighty has given me the power that was paid for back into my workflows keeping the bevy of resource-heavy SaaS platforms isolated and offloaded so I can seamlessly jump from task to task without waiting for something to 'just work'/load!