I use png often. I prefer it especially if I need something with alpha. I do not have the same issue as I expect someone supplying the image files of any format to set the correct color space. There will always be a slight issue converting between color space and with how Rec 709 or Rec 2020 can display an image. But there is a burden of responsibility if a graphic designer or photgrapher is creating an image that they embed the correct sRGB flag if it is for use on computer screens or video timelines & screens.
I’ve also had to inform galleries that color correct display is also display depended and also player software dependent. The number of times I have had to remind clients that making it look right with Quicktime player on their laptop is their problem ,not mine, as I have no control over their particular settings and also if using QuickTime player, then all bets are off. If it is VLC then I have more trust that it can get close.
I do have Affinity on hand to send a problem image to be properly scaled, cleaned and CST’d and I almost always output as a png as it just works for me without jpg compression loss