Need help deciding between a few privacy setups

I appreciate the input, a lot.

So, the way I intend to do it is use the feature phone to get in touch with friends and family when I am on the go, I get your point that people might just sms me, but where I live, very few people have sms packages (sms included in their plans) so they are likely to text me on whatsapp , and I have already moved my close friends and family to signal, so they’ll text me there if I don’t pick up their calls. (both WA and signal currently running on the fedora machine)

As far as the work phone goes, I will use it for my work, to get notifications and stay in touch with my clients on apps like fiverr, upwork and linkedIn, etc. I withdraw the payments from those apps to my paypal, payoneer and other banking service accounts, so they are on this same work phone as well, now my personal bank account will also be on this phone, since i transfer funds into it for my local use. I know it’ll be ideal to buy a separate GOS device and isolate all this stuff in GOS profiles and restrict play services access, but for these apps, I need something that “just works” and since all these apps are directly tied to my real ID, I see no point to ward off Google data collection when these apps refuse to run without google play services. So, this work phone runs all the apps which require gplay services + are tied to my real ID. [+ To avoid people texting me on my feature phone I could run whatsapp or signal on this “work phone” just to respond to them on the go, but that might defeat the purpose of my attempt to limit social media apps, but more privacy centered than a sms here and there when I don’t pick up on the feature phone. (what do you think?)]

For the primary device, where i want to use all the personal apps and browse without linking it back to my ID or email, anything whatsoever, I am still confused between the p9 GOS, ipad, macbook…
But for now I am very okay with the fedora laptop and running waydroid on it for whatever little personal apps i want to run on it, i use browser profiles on librewolf to isolate my work and personal profile. Honestly, so far I don’t even see the need to buy a personal device, maybe upgrade this fedora machine to a macbook if i run into a wall, performance wise.
I am still on bed-rest and might be for quite a few more months, by the time I recover, I guess I would have decided on the personal device, ipad seems reasonable now since i can draw on it and take advantage of its functionality in bed, but I am afraid as soon as I recover it’ll just be sitting on the table.

Apologies for the lengthy response, I am quite new to this privacy conscious lifestyle and I am loving it.