Full-mouth Extraction with Severe Gum Disease - Socket Cleaning By Periodontist?

Hi everyone, so years of neglect, stress, mental health issues have caught up with me and my teeth. I had an emergency extraction of one upper tooth last weekend. I'd lost about 3 upper previously, and 2 lower in my late 30's due to decay. I was good at going in for 6-monthly check-ups for a while, but missed a few and got into a shame/guilt downward spiral.

Last weekend was the first time I'd literally looked in my own my mouth for at least 5 years and it was awful. I felt so sorry for the poor dentist. I've got severe periodontitis, many very mobile teeth that I can see move if I push them gently with my tongue, and pretty severe bone loss too.

I been fear-googling like it's my job. I'm 99% sure that I'll need to go down the full extraction route, but I've not been able to work out if deep cleaning and treatment of all the sockets and diseased pockets by a periodontist is required at the time my teeth are extracted? If I need a periodontist to do the extraction and cleaning/treatment it looks like extraction would be absolute minimum of $5,500 (I'm not in the US, but everything in USD) plus another $5,000 for the cleaning, plus sedation and imaging costs. The extraction/cleaning cost is doable for me, but the cost of also trying bone grafts at about another $5,000 minimum to even have an outside chance at implants later for a lower snap-in is, well, it's beyond what I can afford, especially as none of this includes the dentures themselves!

I've been reading extraction day stories (you're all so brave) and see people mentioning gum disease/peridontitis, but not a lot about how this was handled during extraction. Can anyone with severe gum disease share how this affected their extractions?

This sub has been an absolute ray of light in an extremely dark time.