I also found that my hosting provider (HE) does have something where on vhosts they have an SSL side - but as far as I can see they don't support (that is, by default or whatnot) Let's Encrypt certs.

However, digging deeper - there may be a way for me to set it up; I'd need to use a different LE client that doesn't need root access (there are a few), then I'd also have to set up a cron task to renew the cert every (< 90) days or so. Then update all of my pages, templates, code, etc to use https instead of http where applicable...a not insignificant amount of work, but doable.

I might still fire an email over the HE - maybe it's finally time for me to move away from them and over to Digital Ocean or something that supports LE certs out-of-the-box (I'd still have to fix the links on my site - but then again I've thought about just revamping my site again - it's due for it)...