These are some great pieces of software that I use every day, that deserve your attention.
SponsorBlock Browser Extension - Automatically skip baked-in-content sponsorships in the middle of youtube videos! Life changing extension!
LibreWolf
LibreOffice
ShareX
WizTree
Notepad++
FreeFileSync
KeePass
BleachBit - System File / Disk Cleaner, similar to CCleaner, but completely free & open source rather than being adware / freeware.
Minetest - Completely free & open source Minecraft lookalike / voxel-based game engine.
LibreLingo - Free English > Spanish learning site