Like you, my subscription expired a few months ago. I decided months before that I wasn't going to renew it, but it was the new iMac that pushed me into making a decision about what I was going to do instead.I'm similar to you in terms of use. I had a one year subscription to Adobe that expired several months ago and since I haven't been out shooting I haven't renewed. I'm seriously thinking about switching to something else, be it Affinity, On1, Luminar, etc. I just have so many photos in my Lightroom library at this point and I'm used to the workflow.
What are you doing with all your old photos if you haven't installed Lightroom?
I culled by raw files fairly brutally a few years ago. Where I had 20 photos of the same thing I just kept the best 2 or 3. so all my raw files are now on my main drive, organised into folders by date. I will migrate the older ones to an external drive when I need the space.
Any photos I deemed worthy of being editing and shared (either online or printed) I also export to Apple Photos, where I tag them and organise into Albums as appropriate. So that way I can find photos I'm looking for, and find my way back to the raw files if needed. I don't want to load all the raw files into Apple photos, but I do want the good photos available on all my devices.
I'll see how I go using this method, and if I find I need better asset management I'll go looking for some software to do it, but the reality is that I'm not shooting enough recently that a bit of a manual process is bothersome. My goal was to shoot more this year, but then, you know Covid happened