Increasingly so over time. Will try to install coreboot on my laptop soon. I avoid proprietary blobs where possible too but for stuff like the kernel, proprietary blobs are kinda unavoidable if you want a fully functional system. Tbf I've not tried linux-libre but I just assume it won't agree with some of my tower PC's hardware.

Aside from low-level stuff, I do still use Steam (and the proprietary games on there) and Discord—Steam cause all my games are there and it's convenient, and Discord cause a few of my friend groups primarily talk over Discord. Been considering setting up a Matrix bridge for Discord but I don't think that meaningfully achieves anything since it'll still all be on Discord's servers which are proprietary. I also occasionally install proprietary software to read proprietary file formats and would usually uninstall once I'm done reading the file.