That's the thing that has me worried, deleting partitions. A long time ago (15 years or so) I deleted a partition in windows and it really messed everything up, that's what has made me question whether it is a simple case of just running the Bazzite installer and it holding my hand all the way.
I'm planning on doing it next weekend as this weekend just became busy. No doubt I'll be back here asking more questions.
Thanks to everyone who has responded so far it's been very helpful.
That sounds perfect, thank you so much for your replies & time. I'm gonna give it a go next weekend.