I recommend sticking with VM for the basic broadband provision. VM still do a decent job with that in my opinion. (Admittedly, I do recall an "all morning" outage in the past 6 months though, which was poor. Thankfully, it got no worse than that.)
For a dedicated email service, I recommend ditching VM, and going to a service like Proton Mail's "Mail Plus", which is about £41 per year at time of writing. That's the service I'm with now, as VM email services simply cannot be relied upon, and I often have critical emails to send/receive. (I can recall a series of VM email outages over the past year. This recent one is the worst, and may be the tipping-point for many customers.)
I use an email client (Outlook 2019) to manage all my email. Given I am with Proton Mail, I needed to install a little additional program called Proton Bridge, so my client can get email from Proton's servers.
Proton Mail uses IMAP. In addition to the IMAP folders, I manually copy/paste emails as they arrive -- or get sent -- into a back-up folder structure in Outlook, which I started back when I used POP3 email with VM. (I decided not to change over to IMAP with VM, and stuck with POP3.)
If Proton Mail had a disaster like VM, since it is IMAP, the folders and emails in the IMAP folders replicated in the client would also be lost. (This is because, with IMAP, any local client simply mirrors what is on the server.) However, since I also have manual backups on my local machine, inside a .pst file managed by my email client (placed into a folder structure as they arrive -- via [ctrl]+[c] and then [ctrl]+[v]), I have some extra piece of mind. In any case, it is extremely unlikely that Proton Mail will have an email disaster, as they know what they are doing, and are specialists in email.
I actually prefer the older POP3 email system, as it offers greater simplicity in many respects (as long as you are content to manage your email from a single computer only). However, most modern-day email providers favour IMAP. I searched high and low for a good paid-for POP3 email provider, but could not find one. The challenge, then, is getting IMAP to work for me in a way I find acceptable. I think I've managed to do that.
One final layer of resiliance is a back-up GMail address. I don't really use it, but it is there if I need it.
Hope some of that was informative.