Firefox as a web browser.

I keep trying email clients, but end up going back to Thunderbird. It still looks clunky, but it works well, and the new UI is in beta, so it should look better soon!

I find LibreOffice to be way too heavy for light notes (My current light text editor is FeatherPad), but it’s a great alternative to Word!

I’ve found that GoToSocial and Calckey both use a lot less in resources than Mastodon does.