For me personally, as I've gotten older I have continued to eat better and more consistently than I ever did earlier in life. I think the long term study of your own life tends to show you that diet is one of, if not the, primary factor in short and long term health and well being.
I tried bazzite but ended up on cachyos. The whole layered / immutable thing got a bit annoying. I'd rather just run snapshots and manage my packages more traditionally
I liked Ubuntu and variants back when it first came out and I was newer to Linux but it didn't take long for me to realise there always seemed to be a better option for me as a daily driver. To me its like an new Linux user OS where a lot of stuff is chosen for you to use basically as is. Even the name Kubuntu where the K is for KDE but on other distros you would just choose your DE when you install.
Bazzite is nice but its not very CLI centric I think because of the immutability. Its a great OS, but I found Cachy a lot better if you want to work from CLI in normal ways
Masks and protocols around them were largely just theatre though. Only very expensive n95 or better type masks, which were properly fitted and handled would actually provide any sort of protection from covid. Even the eventual proponents of masks initially were against the idea as in many ways many of the responses to covid were directed politically, not practically.