I have used the raspberry 5 for a few weeks now as my daily driver. And its a keeper. Its slightly slower than my other linux system, but thats no poblem.
I have a slow network. The backup file is over 100GB. Transferring it takes over 10 hrs. It failed more than once. So I used split to convert it to smalle files. Then I used rsync to copy it. This helped me.
Linux Mint 21.1 is giving me random reboots. I changed to opensuse tumbleweed. I tried different images, but I stayed with xfce. So far no reboots, but have to get used to opensuse now.