Same here. I have Writeroom (in a terminal-like theme) always open next to Gmail on my mac, and I keep all my notes and to-dos there – for some years now. The only challenge is that Writeroom has proven to be a bit sluggish with the latest MacOS versions.

Often much of such 'change' in similar considerations comes from yourself – you are older, maybe more risk averse, and hence much more biased in your assessment of the landscape.

Also you may want to take a look at https://www.botfactory.co

You may also checkout https://weatherxm.com